fix

app/dialogflow/services/dialog_service.py

@@ -118,7 +118,7 @@ class DialogService:
             return False
         seats = await self.seats_trip(route_id, trip_id, departure_date, departure_time, kind)
         for seat_data in seats:
-            if seat_data['chair'] == seat and seat_data['bookStatus'] == 0 :
+            if seat_data['chair'].lower() == seat.lower() and seat_data['bookStatus'] == 0 :
                 return True
         return False