Task-oriented dialogue about: train

Can you help me book some train tickets?
Sure! Where are you departing from and what is your destination?
I am leaving from Cambridge.
I'll need to get some more information. Can you tell me your destination and when you will be travelling?
I am going to bishops stortford at 12:45 on thursday.
You would like to leave bishops stortford at 12:45?
Yes, on Thursday. Can you book me a train for 3 people please?
Okay the TR 2929 leaves at 11:29 and arrives at 12:07. Would you like me to book this?