U: I am looking for an expensive restaurant that serves russian food.

S: there is no expensive restaurant that serves russian food can I help you with anything else

U: Yes do you have british type food?

S: Yes, there are 6 options.  Does the part of town matter?

U: I don't care.

S: I could recommend Graffiti in the west.Would you like more information?

U: That's fine.  Is there free WiFi for customers eating there?

S: Yes, Graffiti does offer free WiFi to their customers. Is there anything else I can help you with?

U: May I have the phone number?

S: Their phone number is 01223 277977.  Is there anything else I can help you with?

U: Do they allow BYOB for their customers?

S: No, Graffiti do not offer BYOB for their customers. Anything else I can do for you?

U: What about alcohol service, do they offer that?
S: Yes, the Graffiti serves alcohol, including wine. Would you like me to reserve you a table now or do you have other questions?