I'm looking for a train departing from Cambridge.
What is your destination and when would you like to leave?
I'm leaving cambridge and would like to leave after 11:00.
We have many trains that leave after 11:00. Where would you like to go and on what day?
I would like to go to stansted airport on wednesday please
There is a train departing from Cambridge to Stansted Airport on Wednesday at 11:40. 
Please book two seats on that train, and send me the reference number.
Booked! Your reference number is 89Q51FJW. The fee is 20.2 GBP and paid at the station.
Awesome. I'm also looking for places to go in the centre of town. Any suggestions?
The cambridge contemporary art museum is free and located in the centre. 
Thanks, that's very helpful. Oh, right, what postcode is it in?
The postcode for the Cambridge Contemporary Art Museum is cb21su. Is there anything else I can assist you with today?
That is everything I needed for now. Thank you!
Have a good day and enjoy the museum!