Update app.py

app.py

@@ -28,7 +28,10 @@ async def get_user_travel_data(hushh_id:str):
         if msg.get('metadata') is not None and msg.get('metadata') != 'null':
             ds = json.loads(msg.get('metadata'))
             arrival_date = ds.get('arrival_date') or  date
-            travel_type = ds.get('travel_type')
+            travel_type = ds.get('travel_type',None)
+            if ds.get('travel_type') == 'null' or travel_type is not None:
+                continue
+            
             departure_destination = ds.get('departure_destination') if ds.get('departure_destination') is not None else None
             arrival_destination = ds.get('arrival_destination') if ds.get('arrival_destination') is not None else None
             arrival_city = ds.get('arrival_city') if ds.get('arrival_city') is not None else None