U: I'm looking for a cheap restaurant in the west part of town. I'd also like the restaurant's phone number.

S: There are two cheap restaurants in the west part of town.  La Margherita is an Italian restaurant and Thanh Binh is a Vietnamese restaurant.  Would you like the phone number for one or both of those?

U: Vietnamese sounds good. Could I have the phone number for Thanh Binh?

S: The phone number is 01223 362456.

U: Can you tell me if Thanh Binh serves alcohol?
S: There is really only one customer mentioning alcohol. They have a lot of speciality drinks that are cheap to buy.