There are 4 places in the west area. Two are listed as guesthouses and two are hotels. Would you like more information?
I need a hotel on the west side. Can you tell which ones have 4 stars and would be moderately priced?
{"__type": "Inform", "entity": {"__type": "Hotel", "area": "west", "choice": "4", "type": "hotel"}}
{"__type": "NotifyFailure", "service": "hotel", "entity": {"__type": "Hotel", "area": "west part of town", "price range": "moderately priced", "stars": "4", "type": "hotels"}}
I'm sorry, but there are no hotels in the west part of town that have 4 stars and are moderately priced. Can I look for something different for you?