U: Yes, I was wondering if you could help me find a train leaving from Cambridge.

S: No problem! Where will you be going to and on what day?

U: I'd like to go to london liverpool street on Sunday. I need to get there by 21:00.

S: I have train TR7713 that departs at 17:59 and arrives at 19:27. Would that work for you or would you like something earlier?

U: That one would be great. Can I get 2 tickets on that train, and the reference number once it's booked?

S: Certainly. I have now reserved two tickets for you, which you can pay for at the station. Your reference number is 13GQ9S3A.

U: I'm also looking for a place to stay in the centre of town that includes free parking.

S: What is your price range?

U: I am looking for a cheap place to stay.

S: Can I recommend el shaddia guesthouse?

U: Is it centrally placed and easy to access?
S: The El Shaddia Guesthouse is located within walking distance of many attractions and is a good value for the money.