U: Hi there, I'd like to find a good place to eat in the city centre tonight, but I'm looking for somewhere cheap. Have you any good recommendations?

S: Absolutely! I have about 15 restaurants that are in that area and price range. Can you tell me what type of food you might be trying?

U: You know, I'd really like to try north african food.

S: I am sorry, but there are no cheap restaurants in the centre serving north african food. Would you like to keep searching for another type?

U: How about some chinese food?

S: There are three restaurants, Charlie Chan, Rice House, and Golden House. Would you like to book a table at one of them?

U: Which one has a nice outside eating area?
S: Both Golden House and Rice House seem to have nice outdoor areas. Past guests mentioned enjoying the outdoor areas there.