How about little seoul? It's expensive and in the center of town.
I need a Korean restaurant in the centre of town. Is there other choices that you could provide?
{"__type": "Inform", "entity": {"__type": "Restaurant", "area": "center of town", "price range": "expensive"}} {"__type": "Offer", "entity": {"__type": "Restaurant", "name": "little seoul"}}
{"__type": "NotifyFailure", "service": "restaurant", "entity": {"__type": "Restaurant", "choice": "no other"}} {"__type": "Offer", "entity": {"__type": "Restaurant", "name": "little seoul"}} {"__type": "RequestAlternatives"}
I'm sorry, there are no other options for the criteria you have provided. Would you like more information about little seoul?