I need a train that leaves after 17:30 on Thursday
Where are you leaving from and going on thursday?
I'll be heading from London Liverpool Street to Cambridge.
I've got a number of options for you.  Did you have an arrival time in mind? 
No, I do not. 
Okay the TR7360 leaves at 17:39. Will that work?
Sure, book it for 3 people please.
Booking was successful, the total fee is 49.8 GBP payable at the station .
Reference number is : N1C90WGA.
Could you recommend a college for me to visit while I'm in town?
Christ's College is in Centre. Admission is free. Phone 01223334900.
Thank you so much that will be all, looking forward to Cambridge.
enjoy your time in cambridge