fix: pickup and dropoff

app/dialogflow/services/dialog_service.py

@@ -222,13 +222,14 @@ class DialogService:
                         "wayId": way_id,
                         }.items() if v is not None}
             response = await api.get(api_base=settings.API_BASE_URL_VATO, endpoint=f"/stops/{route_id}", params=params)
+            if not response.get("data"):
+                return []
             data = response["data"]
             return data
         except Exception as e:
             print(e)
             raise Exception("Error fetching stops data")
 
-
     async def pickup_list(self, route_id: int, way_id: int):
         try:
             data = await self.stops(route_id, way_id)