diff --git a/README.md b/README.md
index 41ae4fc..c47aa99 100644
--- a/README.md
+++ b/README.md
@@ -17,6 +17,30 @@ make shell        # open a bash shell in the app container
 make drush <cmd>  # run any drush command, e.g. make drush cr
 ```
 
+## Scripts
+
+### Seed provider availability
+
+Populates `provider_availability` nodes for the next calendar month across all active providers, using randomised noise per provider.
+
+```sh
+make drush php-script scripts/seed_availability.php
+```
+
+Preview without saving:
+
+```sh
+SEED_DRY_RUN=1 make drush php-script scripts/seed_availability.php
+```
+
+Wipe existing availability for the month before seeding:
+
+```sh
+SEED_WIPE=1 make drush php-script scripts/seed_availability.php
+```
+
+Running the script twice without `SEED_WIPE=1` will create duplicates.
+
 ## Modules
 
 - **FullCalendar View** — interactive appointment calendar
diff --git a/composer.json b/composer.json
index dd36876..bff7ed9 100644
--- a/composer.json
+++ b/composer.json
@@ -5,6 +5,10 @@
     "license": "GPL-2.0-or-later",
     "minimum-stability": "dev",
     "prefer-stable": true,
+    "require": {
+        "symfony/http-client": "^7.0",
+        "symfony/postmark-mailer": "^7.0"
+    },
     "config": {
         "allow-plugins": {
             "composer/installers": true,
diff --git a/config/sync/symfony_mailer.mailer_transport.postmark.yml b/config/sync/symfony_mailer.mailer_transport.postmark.yml
new file mode 100644
index 0000000..cd9b3ff
--- /dev/null
+++ b/config/sync/symfony_mailer.mailer_transport.postmark.yml
@@ -0,0 +1,8 @@
+langcode: en
+status: true
+dependencies: {}
+id: postmark
+label: Postmark
+plugin: dsn
+configuration:
+  dsn: 'postmark+api://change-me@default'
diff --git a/docker-compose.yml b/docker-compose.yml
index 1787e9f..4a3fcf1 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -13,6 +13,7 @@ services:
       SITE_NAME: "Portfolio"
       ADMIN_PASS: "${ADMIN_PASS:-admin}"
       HASH_SALT: "${HASH_SALT:-replace-this-in-production-with-a-long-random-string}"
+      POSTMARK_API_KEY: "${POSTMARK_API_KEY:-}"
     volumes:
       - ./web/sites/default/files:/var/www/html/web/sites/default/files
     depends_on:
diff --git a/scripts/seed_availability.php b/scripts/seed_availability.php
new file mode 100644
index 0000000..75b787a
--- /dev/null
+++ b/scripts/seed_availability.php
@@ -0,0 +1,133 @@
+<?php
+
+/**
+ * Seed provider_availability nodes for the next calendar month.
+ *
+ * Usage: drush php-script scripts/seed_availability.php
+ *
+ * Options (env vars):
+ *   SEED_DRY_RUN=1   Print what would be created without saving.
+ *   SEED_WIPE=1      Delete existing availability for the period first.
+ */
+
+$dryRun = (bool) getenv('SEED_DRY_RUN');
+$wipe   = (bool) getenv('SEED_WIPE');
+
+// --- Date range: next full calendar month ---
+$start = new DateTimeImmutable('first day of next month 00:00:00');
+$end   = new DateTimeImmutable('last day of next month 23:59:59');
+
+// --- Load providers ---
+$providerIds = \Drupal::entityQuery('user')
+  ->condition('roles', 'provider')
+  ->condition('status', 1)
+  ->accessCheck(FALSE)
+  ->execute();
+
+if (empty($providerIds)) {
+  echo "No active users with the 'provider' role found. Aborting.\n";
+  return;
+}
+
+$providers = \Drupal\user\Entity\User::loadMultiple($providerIds);
+echo sprintf("Found %d provider(s): %s\n",
+  count($providers),
+  implode(', ', array_map(fn($u) => $u->getDisplayName(), $providers))
+);
+
+// --- Optionally wipe existing availability in the range ---
+if ($wipe) {
+  $existing = \Drupal::entityQuery('node')
+    ->condition('type', 'provider_availability')
+    ->condition('field_start_datetime', $start->format('Y-m-d\TH:i:s'), '>=')
+    ->condition('field_start_datetime', $end->format('Y-m-d\TH:i:s'), '<=')
+    ->accessCheck(FALSE)
+    ->execute();
+
+  if ($existing) {
+    echo sprintf("Deleting %d existing availability node(s)...\n", count($existing));
+    if (!$dryRun) {
+      $storage = \Drupal::entityTypeManager()->getStorage('node');
+      $storage->delete($storage->loadMultiple($existing));
+    }
+  }
+}
+
+// --- Slot generation config ---
+// Working hours: 8am–4pm (slots are 1 hour, last slot starts at 4pm)
+const SLOT_DURATION_MINUTES = 60;
+const SLOT_START_HOUR = 8;
+const SLOT_END_HOUR   = 16;
+const SLOT_HOURS      = [8, 9, 10, 11, 13, 14, 15, 16]; // skip noon
+
+// Per-provider noise: each provider gets an independent random pattern.
+// We use a seeded approach so the same provider always generates the same
+// schedule for a given run, but differs from other providers.
+function providerSeed(\Drupal\user\Entity\User $user): int {
+  return crc32($user->getDisplayName() . $user->id());
+}
+
+function noisySlotCount(int $providerSeed, DateTimeImmutable $date): int {
+  // Combine provider seed with day-of-year for per-day variance.
+  $daySeed = $providerSeed ^ (int) $date->format('z') * 2654435761;
+  // Map to 0–5, weighted toward 1–3.
+  $raw = abs($daySeed) % 12;
+  return [0, 0, 1, 1, 1, 2, 2, 2, 3, 3, 4, 5][$raw];
+}
+
+// --- Generate nodes ---
+$created = 0;
+$current = $start;
+
+while ($current <= $end) {
+  foreach ($providers as $provider) {
+    $count = noisySlotCount(providerSeed($provider), $current);
+
+    if ($count === 0) {
+      $current = $current->modify('+1 day');
+      continue 2;
+    }
+
+    // Pick $count distinct hours from SLOT_HOURS without replacement.
+    $hours = SLOT_HOURS;
+    shuffle($hours);
+    $selectedHours = array_slice($hours, 0, $count);
+    sort($selectedHours);
+
+    foreach ($selectedHours as $hour) {
+      $slotStart = $current->setTime($hour, 0);
+      $slotEnd   = $slotStart->modify('+' . SLOT_DURATION_MINUTES . ' minutes');
+
+      $label = sprintf('%s — %s',
+        $provider->getDisplayName(),
+        $slotStart->format('Y-m-d H:i')
+      );
+
+      if ($dryRun) {
+        echo "[DRY RUN] Would create: $label\n";
+      } else {
+        \Drupal\node\Entity\Node::create([
+          'type'               => 'provider_availability',
+          'title'              => $label,
+          'status'             => 1,
+          'uid'                => 1,
+          'field_provider'     => ['target_id' => $provider->id()],
+          'field_start_datetime' => $slotStart->format('Y-m-d\TH:i:s'),
+          'field_end_datetime'   => $slotEnd->format('Y-m-d\TH:i:s'),
+        ])->save();
+      }
+
+      $created++;
+    }
+  }
+
+  $current = $current->modify('+1 day');
+}
+
+$verb = $dryRun ? 'Would create' : 'Created';
+echo sprintf("%s %d availability slot(s) across %d provider(s) for %s.\n",
+  $verb,
+  $created,
+  count($providers),
+  $start->format('F Y')
+);
diff --git a/web/modules/custom/riverside_pt/config/install/riverside_pt.settings.yml b/web/modules/custom/riverside_pt/config/install/riverside_pt.settings.yml
index 9f334c6..8b7a52b 100644
--- a/web/modules/custom/riverside_pt/config/install/riverside_pt.settings.yml
+++ b/web/modules/custom/riverside_pt/config/install/riverside_pt.settings.yml
@@ -1,3 +1,4 @@
+notification_email: 'admin@example.com'
 holidays:
   - date: '2026-01-01'
     name: "New Year's Day"
diff --git a/web/modules/custom/riverside_pt/config/schema/riverside_pt.schema.yml b/web/modules/custom/riverside_pt/config/schema/riverside_pt.schema.yml
index 9b90132..e14eecb 100644
--- a/web/modules/custom/riverside_pt/config/schema/riverside_pt.schema.yml
+++ b/web/modules/custom/riverside_pt/config/schema/riverside_pt.schema.yml
@@ -2,6 +2,9 @@ riverside_pt.settings:
   type: config_object
   label: 'Riverside PT Settings'
   mapping:
+    notification_email:
+      type: string
+      label: 'Notification email address'
     holidays:
       type: sequence
       label: 'Holidays'
diff --git a/web/modules/custom/riverside_pt/css/calendar.css b/web/modules/custom/riverside_pt/css/calendar.css
index 3c0f3d1..aada387 100644
--- a/web/modules/custom/riverside_pt/css/calendar.css
+++ b/web/modules/custom/riverside_pt/css/calendar.css
@@ -79,11 +79,9 @@
 }
 
 #riverside-calendar .riverside-holiday-label {
+  line-height: 1;
   font-size: 0.65rem;
   color: #b45309;
   text-align: center;
   padding-bottom: 2px;
-  overflow: hidden;
-  white-space: nowrap;
-  text-overflow: ellipsis;
 }
diff --git a/web/modules/custom/riverside_pt/js/calendar.js b/web/modules/custom/riverside_pt/js/calendar.js
index 7058ee5..335f6f1 100644
--- a/web/modules/custom/riverside_pt/js/calendar.js
+++ b/web/modules/custom/riverside_pt/js/calendar.js
@@ -32,7 +32,12 @@
         const label = document.createElement('div');
         label.className = 'riverside-holiday-label';
         label.textContent = holiday;
-        arg.el.appendChild(label);
+        const dayTop = arg.el.querySelector('.fc-daygrid-day-top');
+        if (dayTop) {
+          dayTop.insertAdjacentElement('afterend', label);
+        } else {
+          arg.el.appendChild(label);
+        }
       },
       moreLinkClick: function (arg) {
         arg.jsEvent.preventDefault();
@@ -44,7 +49,14 @@
           const li = document.createElement('li');
           const start = seg.event.start.toLocaleTimeString(undefined, { hour: 'numeric', minute: '2-digit' });
           const end = seg.event.end.toLocaleTimeString(undefined, { hour: 'numeric', minute: '2-digit' });
-          li.textContent = start + ' – ' + end;
+          const params = new URLSearchParams({
+            start: seg.event.startStr,
+            end: seg.event.endStr,
+          });
+          const a = document.createElement('a');
+          a.href = drupalSettings.riversidePt.bookingUrl + '?' + params.toString();
+          a.textContent = start + ' – ' + end;
+          li.appendChild(a);
           panelSlots.appendChild(li);
         });
         openPanel();
diff --git a/web/modules/custom/riverside_pt/riverside_pt.module b/web/modules/custom/riverside_pt/riverside_pt.module
new file mode 100644
index 0000000..0f62ac4
--- /dev/null
+++ b/web/modules/custom/riverside_pt/riverside_pt.module
@@ -0,0 +1,17 @@
+<?php
+
+function riverside_pt_mail(string $key, array &$message, array $params): void {
+  if ($key !== 'booking_request') {
+    return;
+  }
+
+  $start = new \DateTime($params['start']);
+  $end   = new \DateTime($params['end']);
+
+  $message['subject'] = 'Booking request — ' . $start->format('M j, Y g:i A');
+  $message['body'][]  = implode("\n", [
+    'Name:  ' . $params['first_name'] . ' ' . $params['last_name'],
+    'Phone: ' . $params['phone'],
+    'Slot:  ' . $start->format('l, F j, Y') . ', ' . $start->format('g:i A') . '–' . $end->format('g:i A'),
+  ]);
+}
diff --git a/web/modules/custom/riverside_pt/riverside_pt.routing.yml b/web/modules/custom/riverside_pt/riverside_pt.routing.yml
index 295bf00..8c18dd5 100644
--- a/web/modules/custom/riverside_pt/riverside_pt.routing.yml
+++ b/web/modules/custom/riverside_pt/riverside_pt.routing.yml
@@ -6,6 +6,14 @@ riverside_pt.schedule:
   requirements:
     _permission: 'access content'
 
+riverside_pt.booking:
+  path: '/schedule/book'
+  defaults:
+    _form: '\Drupal\riverside_pt\Form\BookingForm'
+    _title: 'Request Appointment'
+  requirements:
+    _permission: 'access content'
+
 riverside_pt.schedule_events:
   path: '/schedule/events'
   defaults:
diff --git a/web/modules/custom/riverside_pt/src/Controller/ScheduleController.php b/web/modules/custom/riverside_pt/src/Controller/ScheduleController.php
index de40cae..684eec0 100644
--- a/web/modules/custom/riverside_pt/src/Controller/ScheduleController.php
+++ b/web/modules/custom/riverside_pt/src/Controller/ScheduleController.php
@@ -60,7 +60,8 @@ class ScheduleController extends ControllerBase {
         'library' => ['riverside_pt/schedule'],
         'drupalSettings' => [
           'riversidePt' => [
-            'eventsUrl' => Url::fromRoute('riverside_pt.schedule_events')->toString(),
+            'eventsUrl'  => Url::fromRoute('riverside_pt.schedule_events')->toString(),
+            'bookingUrl' => Url::fromRoute('riverside_pt.booking')->toString(),
             'holidays' => $this->buildHolidaysMap(),
           ],
         ],
@@ -82,6 +83,10 @@ class ScheduleController extends ControllerBase {
     $end = $request->query->get('end');
 
     $current = new \DateTime($start ?? 'now');
+    $today = new \DateTime('today');
+    if ($current < $today) {
+      $current = $today;
+    }
     $until = new \DateTime($end ?? 'now');
     $events = [];
     $id = 1;
diff --git a/web/modules/custom/riverside_pt/src/Form/BookingForm.php b/web/modules/custom/riverside_pt/src/Form/BookingForm.php
new file mode 100644
index 0000000..afd1cec
--- /dev/null
+++ b/web/modules/custom/riverside_pt/src/Form/BookingForm.php
@@ -0,0 +1,118 @@
+<?php
+
+namespace Drupal\riverside_pt\Form;
+
+use Drupal\Core\Form\FormBase;
+use Drupal\Core\Form\FormStateInterface;
+use Drupal\Core\Mail\MailManagerInterface;
+use Drupal\Core\Config\ConfigFactoryInterface;
+use Drupal\user\Entity\User;
+use Symfony\Component\DependencyInjection\ContainerInterface;
+use Symfony\Component\HttpFoundation\RequestStack;
+
+class BookingForm extends FormBase {
+
+  public function __construct(
+    private readonly MailManagerInterface $mailManager,
+    ConfigFactoryInterface $configFactory,
+    RequestStack $requestStack,
+  ) {
+    $this->configFactory = $configFactory;
+    $this->requestStack = $requestStack;
+  }
+
+  public static function create(ContainerInterface $container): static {
+    return new static(
+      $container->get('plugin.manager.mail'),
+      $container->get('config.factory'),
+      $container->get('request_stack'),
+    );
+  }
+
+  public function getFormId(): string {
+    return 'riverside_pt_booking_form';
+  }
+
+  public function buildForm(array $form, FormStateInterface $form_state): array {
+    $query = $this->requestStack->getCurrentRequest()->query;
+    $start = $query->get('start', '');
+    $end   = $query->get('end', '');
+    $uid   = $query->get('provider', '');
+
+    $slot_display = '';
+    if ($start && $end) {
+      $s = new \DateTime($start);
+      $e = new \DateTime($end);
+      $slot_display = $s->format('l, F j, Y') . ', ' . $s->format('g:i A') . '–' . $e->format('g:i A');
+    }
+
+    $form['slot_summary'] = [
+      '#type'   => 'item',
+      '#title'  => $this->t('Appointment'),
+      '#markup' => $slot_display ?: $this->t('No slot selected.'),
+    ];
+
+    if ($uid && $provider = User::load($uid)) {
+      $form['provider_summary'] = [
+        '#type'   => 'item',
+        '#title'  => $this->t('Provider'),
+        '#markup' => $provider->getDisplayName(),
+      ];
+    }
+
+    $form['start']       = ['#type' => 'hidden', '#value' => $start];
+    $form['end']         = ['#type' => 'hidden', '#value' => $end];
+    $form['provider_id'] = ['#type' => 'hidden', '#value' => $uid];
+
+    $form['first_name'] = [
+      '#type'     => 'textfield',
+      '#title'    => $this->t('First name'),
+      '#required' => TRUE,
+    ];
+
+    $form['last_name'] = [
+      '#type'     => 'textfield',
+      '#title'    => $this->t('Last name'),
+      '#required' => TRUE,
+    ];
+
+    $form['phone'] = [
+      '#type'     => 'tel',
+      '#title'    => $this->t('Phone number'),
+      '#required' => TRUE,
+    ];
+
+    $form['actions'] = ['#type' => 'actions'];
+    $form['actions']['submit'] = [
+      '#type'  => 'submit',
+      '#value' => $this->t('Request appointment'),
+    ];
+
+    return $form;
+  }
+
+  public function submitForm(array &$form, FormStateInterface $form_state): void {
+    $to   = $this->configFactory->get('riverside_pt.settings')->get('notification_email');
+    $lang = $this->languageManager()->getDefaultLanguage()->getId();
+
+    $params = [
+      'first_name' => $form_state->getValue('first_name'),
+      'last_name'  => $form_state->getValue('last_name'),
+      'phone'      => $form_state->getValue('phone'),
+      'start'      => $form_state->getValue('start'),
+      'end'        => $form_state->getValue('end'),
+    ];
+
+    $sent = $this->mailManager->mail('riverside_pt', 'booking_request', $to, $lang, $params);
+
+    if ($sent['result']) {
+      $this->messenger()->addStatus($this->t('Your request has been submitted. We will contact you to confirm.'));
+    }
+    else {
+      $this->messenger()->addError($this->t('Something went wrong. Please call us to book directly.'));
+    }
+
+    $form_state->setRedirect('riverside_pt.schedule');
+  }
+
+}
diff --git a/web/sites/default/settings.php b/web/sites/default/settings.php
index 912fbb1..c936315 100644
--- a/web/sites/default/settings.php
+++ b/web/sites/default/settings.php
@@ -19,6 +19,11 @@ $settings['hash_salt'] = getenv('HASH_SALT') ?: 'replace-this-in-production';
 
 $settings['update_free_access'] = FALSE;
 
+if ($postmark_key = getenv('POSTMARK_API_KEY')) {
+  $config['symfony_mailer.mailer_transport.postmark']['configuration']['dsn'] =
+    'postmark+api://' . $postmark_key . '@default';
+}
+
 // Disable CSS/JS aggregation — assets served directly from source paths.
 $config['system.performance']['css']['preprocess'] = FALSE;
 $config['system.performance']['js']['preprocess'] = FALSE;