Task-oriented dialogue about: train

Hi, I'm looking for a train that leaves after 13:45 on Friday.
No problem. Where is your departure area and destination?
I need to go to stansted airport and will be departing from cambridge
The closest to 13:45 is 14:40, which is the TR1316. It arrives at Stansted Airport at 15:08. Do you still want to book it?
Yes, can you book it for 7 people and give me the reference number?
Booked! Reference number is FQB8ZKSP . You will pay 70.7 GBP at the station.
OK I got it. Thanks for your help.
Okay please call us again.