U: Hello.  I need to catch a train leaving on Monday.  Can you help me find something?

S: Yeah sure but you need a departure/arrival city and time.

U: i am going to london liverpool street from cambridge and should arrive there by 12:45

S: TR5431 fits your criteria and will arrive at 01:27. Would you like me to book that for you?

U: Yes, could you book 3 tickets and provide the reference number please.

S: Reference number is : 4HWC0OMV. Do you need anything else?

U: I also need to find out some information about the lensfield hotel

S: Ah, yes, the Lensfield is a very nice hotel. It's on the south end of the city and is quite expensive, but they have free wifi. Would you like a room?

U: Are the restrooms kept clean?
S: The Lensfield Hotel has a couple complaints about dirty bathrooms, but two people found the bathrooms to be clean. It got mixed reviews.