U: Can you assist me to find Restaurants in the Center of Cambridge that serves Chines foods?

S: There are 10 results for that search. Can I narrow that down with a price range you'd like to stay in?

U: I'd like an expensive restaurant, please.

S: There are four. Would you like a table, or more information?

U: Ah... just pick one that you recommend and do a reservation for 6 at 14:45 on Saturday.

S: I've reserved a table for 6 at ugly duckling at 14:45 on Saturday. Your confirmation number is G6RS8PAR.

U: Is this restaurant known for it's friendly wait staff?
S: According to the reviews that I have on hand for this location, the servers have been described as enjoyable and attentive!