U: Can you help me take a train from Cambridge to Stansted Airport?

S: What day and time would you like to travel?

U: I would like to travel saturday and leave after 21:00

S: The TR2605 train meets your criteria. Would you like to make a booking?

U: Yes, please. I need 4 tickets.

S: Booking was successful, the total fee is 40.4 GBP payable at the station . Reference number is : BOI263IB.

U: I am  also looking for a place to dine.

S: I can help you with that. What part of town are you looking to dine in and is there a certain price range you would like to stay in?

U: Anywhere downtown and keep the price moderate please.

S: I assumed that by downtown you meant centre, I ran a search and there were 21 moderately priced restaurants, any repferences?

U: I think Chinese would be good.

S: There are three Chinese restaurants in the center of town: jinling noodle bar, lan hong house and shanghai family restaurant. Do you have a preference?

U: Can you tell me which one has dumplings that are a good value for the money?
S: All three of the restaurants get good reviews on their food and their affordability, including the dumplings. Do you want to know more about any of the three restaurants?