U: Can you help me find a train departing from cambridge going to stevenage?

S: What day would you like to leave?

U: I would like to leave after 16:15 on tuesday.

S: I have a train that laeves at 17:21. Will that do?

U: there is none that leaves earlier? how much will that one cost me?

S: There is no earlier train. The price is 12.80 pounds.

U: Okay thank you. Could you help me find a guesthouse in the centre to stay at?

S: I have 2 guesthouses in the center. They're both cheap, but the 4-star Alexander B&B is by far the better choice. Would you like to book a room?

U: I need one in the expensive price range that includes free parking.

S: I'm sorry we don't have an expensive guesthouse in the centre area. Would you like to try some different criteria?

U: Ok, well do you mind trying to see if there is a hotel that matches my other requests.

S: I recommend University Arms hotel. I meets your criteria. Would you like me to book you a room?

U: Do they have upscale mattresses that will support my bad back?
S: The University Arms Hotel has one good review about their beds being comfortable, as well as one negative one.