diff --git a/public/js/components/Calendar/Base/Grid.js b/public/js/components/Calendar/Base/Grid.js
index f52cd2509..91f954d35 100644
--- a/public/js/components/Calendar/Base/Grid.js
+++ b/public/js/components/Calendar/Base/Grid.js
@@ -329,6 +329,9 @@ export default {
 			return !dayEvents.some(ev => ev.start < end && ev.end > start);
 		}
 	},
+	created() {
+		this.$p.loadCategory(["LvPlan"]);
+	},
 	beforeUnmount() {
 		this.disableAutoScroll();
 	},
@@ -425,6 +428,7 @@ export default {
 								class="fhc-calendar-empty-slot"
 								style="position:absolute; inset:0; z-index:1"
 								v-cal-click:slot="{ date, part }"
+								:title="this.reservierbarMap?.[date.toISODate()] ? $p.t('LvPlan/add_reservation') : $p.t('LvPlan/reservation_not_allowed')"
 							>
 								<div class="fhc-calendar-empty-slot-plus">
 									<i v-if="this.reservierbarMap?.[date.toISODate()]" class="fa-solid fa-plus"></i>
diff --git a/system/phrasesupdate.php b/system/phrasesupdate.php
index a2d0364cd..ec35a0718 100644
--- a/system/phrasesupdate.php
+++ b/system/phrasesupdate.php
@@ -29924,6 +29924,46 @@ array(
 				)
 			)
 		),
+		array(
+			'app' => 'core',
+			'category' => 'LvPlan',
+			'phrase' => 'add_reservation',
+			'insertvon' => 'system',
+			'phrases' => array(
+				array(
+					'sprache' => 'German',
+					'text' => 'Reservierung hinzufügen',
+					'description' => '',
+					'insertvon' => 'system'
+				),
+				array(
+					'sprache' => 'English',
+					'text' => 'Add reservation',
+					'description' => '',
+					'insertvon' => 'system'
+				)
+			)
+		),
+		array(
+			'app' => 'core',
+			'category' => 'LvPlan',
+			'phrase' => 'reservation_not_allowed',
+			'insertvon' => 'system',
+			'phrases' => array(
+				array(
+					'sprache' => 'German',
+					'text' => 'Reservierung nicht erlaubt',
+					'description' => '',
+					'insertvon' => 'system'
+				),
+				array(
+					'sprache' => 'English',
+					'text' => 'Reservation not allowed',
+					'description' => '',
+					'insertvon' => 'system'
+				)
+			)
+		),
 		// LvPlan Phrasen ende
 		//ProfilUpdate Phrasen start
 		array(