U: I need a restaurant in the cheap price range that serves Portuguese food.

S: There are two in Cambridge. One in the south and one in the centre. Do you have a preference?

U: It does not make a difference as long as they have reservations for 4 on sunday at 12:00. Could I get a reference number?

S: Sure, i have booked Nandos sunday 12:00 for 4. May I help with anything else?

U: Does Nandos offer outdoor seating for customers?

S: There is no outdoor seating at Nandos. What else do you need to know?

U: Does Nandos serve alcohol to customers?
S: Nandos does have alcoholic drinks that they serve to customers. Is there anything else I can help you with?