U: I'm looking for a train that goes to Cambridge and arrives by 08:45.

S: I found 231 trains that fit your request. Where will you be departing from?

U: I will be departing from Birmingham New Street on Tuesday.

S: TR0254 Leaves at 05:40, would you like me to book that for you?

U: No thank you. Please tell me about the ticket pricing and time of travel

S: The price is 75.10 pounds and it is a 163 minutes ride.  Can I help you with anything else?

U: Please book 6 tickets and send me the reference number.

S: Booking was successful, the total fee is 450.6 GBP payable at the station .
Reference number is : G368B2VI.  Can I help with anything else today?

U: Yes please. I need a 3 star hotel that offers free wifi

S: I found two expensive hotels, one in the centre and one in the south of town. Do you have a preference?

U: I would like to stay in the centre of town please.

S: What price range and what star rating are you looking for ?

U: Again, 3 star with free wifi. I don't care about the price. It has to be in the centre, though.

S: The Gonville Hotel will meet all of your needs.  Would you like me to book it?

U: No, not yet. I just need the postcode.

S: Okay, the postcode is cb11ly. What else can I help with?

U: How are the beds there?
S: The reviewers said that the beds are very comfortable. One person said they fell asleep easily after work.