diff --git a/package-lock.json b/package-lock.json
index d0f592f..05f5aef 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -12,7 +12,6 @@
                 "@tailwindcss/forms": "^0.5.7",
                 "@tailwindcss/typography": "^0.5.0",
                 "alpinejs": "^3.13.5",
-                "dayjs": "^1.11.10",
                 "flowbite": "^2.5.2",
                 "flowbite-datepicker": "^1.2.6"
             },
@@ -20,9 +19,11 @@
                 "@spiriit/vite-plugin-svg-spritemap": "^2.2.4",
                 "autoprefixer": "^10.4.0",
                 "axios": "^1.7.7",
+                "dayjs": "^1.11.13",
                 "postcss": "^8.4.4",
                 "tailwind-clip-path": "^1.0.0",
                 "tailwindcss": "latest",
+                "tippy.js": "^6.3.7",
                 "toastify-js": "^1.12.0",
                 "vite": "^5.0",
                 "vite-plugin-live-reload": "^3.0"
@@ -1227,7 +1228,8 @@
         "node_modules/dayjs": {
             "version": "1.11.13",
             "resolved": "https://registry.npmjs.org/dayjs/-/dayjs-1.11.13.tgz",
-            "integrity": "sha512-oaMBel6gjolK862uaPQOVTA7q3TZhuSvuMQAAglQDOWYO9A91IrAOUJEyKVlqJlHE0vq5p5UXxzdPfMH/x6xNg=="
+            "integrity": "sha512-oaMBel6gjolK862uaPQOVTA7q3TZhuSvuMQAAglQDOWYO9A91IrAOUJEyKVlqJlHE0vq5p5UXxzdPfMH/x6xNg==",
+            "dev": true
         },
         "node_modules/deepmerge": {
             "version": "4.3.1",
@@ -2479,6 +2481,15 @@
                 "node": ">=0.8"
             }
         },
+        "node_modules/tippy.js": {
+            "version": "6.3.7",
+            "resolved": "https://registry.npmjs.org/tippy.js/-/tippy.js-6.3.7.tgz",
+            "integrity": "sha512-E1d3oP2emgJ9dRQZdf3Kkn0qJgI6ZLpyS5z6ZkY1DF3kaQaBsGZsndEpHwx+eC+tYM41HaSNvNtLx8tU57FzTQ==",
+            "dev": true,
+            "dependencies": {
+                "@popperjs/core": "^2.9.0"
+            }
+        },
         "node_modules/to-regex-range": {
             "version": "5.0.1",
             "resolved": "https://registry.npmjs.org/to-regex-range/-/to-regex-range-5.0.1.tgz",
diff --git a/package.json b/package.json
index 61ce5e9..ae1470c 100644
--- a/package.json
+++ b/package.json
@@ -19,9 +19,11 @@
         "@spiriit/vite-plugin-svg-spritemap": "^2.2.4",
         "autoprefixer": "^10.4.0",
         "axios": "^1.7.7",
+        "dayjs": "^1.11.13",
         "postcss": "^8.4.4",
         "tailwind-clip-path": "^1.0.0",
         "tailwindcss": "latest",
+        "tippy.js": "^6.3.7",
         "toastify-js": "^1.12.0",
         "vite": "^5.0",
         "vite-plugin-live-reload": "^3.0"
@@ -30,7 +32,6 @@
         "@tailwindcss/forms": "^0.5.7",
         "@tailwindcss/typography": "^0.5.0",
         "alpinejs": "^3.13.5",
-        "dayjs": "^1.11.10",
         "flowbite": "^2.5.2",
         "flowbite-datepicker": "^1.2.6"
     }
diff --git a/partials/anfrage/default.htm b/partials/anfrage/default.htm
index bca7e89..9be8369 100644
--- a/partials/anfrage/default.htm
+++ b/partials/anfrage/default.htm
@@ -11,7 +11,7 @@
 
         <div>
           <label for="date" class="block text-sm font-medium text-zinc-100">Gewünschtes Datum</label>
-          <input x-model="value.date" id="date" name="date" datepicker class="shadow-sm bg-zinc-800 border border-zinc-700 text-zinc-200 text-sm rounded-lg focus:ring-indigo-800 focus:border-indigo-800 block w-full p-2.5" placeholder="">
+          <input data-tippy-target x-model="value.date" @input="onChangeDate" id="date" name="date" datepicker class="shadow-sm bg-zinc-800 border border-zinc-700 text-zinc-200 text-sm rounded-lg focus:ring-indigo-800 focus:border-indigo-800 block w-full p-2.5" placeholder="">
         </div>
 
         <div>
diff --git a/resources/css/app.css b/resources/css/app.css
index 4c74fc2..4fda214 100644
--- a/resources/css/app.css
+++ b/resources/css/app.css
@@ -33,3 +33,17 @@
         transform: rotate(360deg);
     }
 }
+
+.tippy-box[data-theme~='success'] {
+    @apply bg-green-800 text-green-100 font-semibold;
+}
+.tippy-box[data-theme~='success'] .tippy-arrow {
+    @apply text-green-800;
+}
+
+.tippy-box[data-theme~='error'] {
+    @apply bg-red-800 text-red-100 font-semibold;
+}
+.tippy-box[data-theme~='error'] .tippy-arrow {
+    @apply text-red-800;
+}
diff --git a/resources/js/app.js b/resources/js/app.js
index 0b9d580..a4bfa4a 100644
--- a/resources/js/app.js
+++ b/resources/js/app.js
@@ -7,9 +7,13 @@ import customParseFormat from 'dayjs/plugin/customParseFormat';
 dayjs.extend(customParseFormat);
 import axios from 'axios';
 import {error} from './toast.js';
+import tippy from 'tippy.js';
 
 import '../css/toastify.css';
 import '../css/app.css';
+import 'tippy.js/dist/tippy.css';
+
+dayjs.extend(customParseFormat);
 
 function initDatepicker(el) {
     new Datepicker(el, {
@@ -54,6 +58,35 @@ Alpine.data('form', () => ({
 
         return dayjs(this.value.birthday, 'DD.MM.YYYY').add(18, 'year').isAfter(dayjs(this.value.date, 'DD.MM.YYYY'));
     },
+    onChangeDate: async function (n) {
+        const date = dayjs(this.value.date, 'DD.MM.YYYY');
+
+        if (!date.isValid()) {
+            return;
+        }
+
+        const response = await axios.post(
+            window.location.pathname,
+            {date: date.format('YYYY-MM-DD')},
+            {
+                headers: {
+                    'X-Winter-Request-Handler': 'anfrage::onDateValidation',
+                    'X-Requested-With': 'XMLHttpRequest',
+                },
+            }
+        );
+
+        tippy('[data-tippy-target]', {
+            content: response.data.result ? 'Dieser Termin ist verfügbar' : 'Dieser Termin ist leider nicht buchbar',
+            showOnCreate: true,
+            trigger: 'manual',
+            theme: response.data.result ? 'success' : 'error',
+            placement: 'top',
+            onShown: function (t) {
+                window.setTimeout(() => t.hide(), 3000);
+            },
+        });
+    },
     submit: async function () {
         if (this.sending === true) {
             return;