U: I need to book a train that leaves after 13:45 on Tuesday.

S: What is your destination?

U: I'm going to Liverpool Street in London.

S: The first train out of Cambridge after 13:45, going to London Liverpool Street, is the TR9404, which leaves at 13:59.

U: Ok, how much is the ticket?

S: The ticket is 16.60 pounds.

U: I cant afford that is there anything cheaper?

S: Unfortunately, there is not from that destination.

U: I will have to take it then.

S: Just to confirm, would you like me to book Train TR9494 for 1 seat?

U: yes. im also looking for a place to eat

S: I was able to book the ticket the reference number is ZPDXC5NW. What area would you like the restaurant?

U: I would like a Italian food in the centre.

S: There are several Italian restaurants in the center. Do you want a cheap, moderate or expensive price range?

U: Price doesn't matter.  Can you recommend one that you love?

S: i recommend the don pasquale pizzeria. do you need a reservation?

U: Do they serve large portions?
S: Customers responses to the serving sizes offered at the Don Pasquale Pizzeria differ and can range from somewhat small all the way to being able to satisfy anyone's appetite.