I am sorry I looked up your criteria and I do not see any expensive russian restaurants in my data base
Hi, can you help me find an expensive russian restaurant? Are you looking in the centre area?
{"__type": "NotifyFailure", "service": "restaurant", "entity": {"__type": "Restaurant", "food": "russian", "price range": "expensive"}}
{"__type": "NotifyFailure", "service": "restaurant"}
Yes, I apologize but no restaurants match your search.