U: I need a train leaving on Saturday after 5:30 pm

S: What is your departure site and destination?

U: I am departing from stevenage and going to cambridge.

S: Just to clarify, you want to leave after 05:30 (am), or 17:30 (5:30 pm)?

U: After 17:30 please

S: There is a train that leaves at 17:54.

U: The train should go to Cambridge and should depart from Stevens. Once you find the train you want to make a booking for 8 people.

S: There are 4 trains that meet your specifications. They run every two hours. The first one leaves at 17:54 and the last at 23:54. What would you prefer?

U: I think I would be interested in the 17:54 and I need to book it for 8 people.

S: Okay TR2442 is booked for 8 people at 17:54 on saturday. It will cost 81.92 GBP in total, and your reference number is CCTYHUU8.

U: I'm also looking for a restaurant that serves north american food, in the expensive range.

S: gourmet burger kitchen is perfect for you. It is in the center and is in expensive  price range. Could you like a reservation?

U: Does this location have a high quality pilsner selection?
S: The Gourmet Burger Kitchen is known to offer a decent selection of beer at a reasonable quality and price.