Task-oriented dialogue about: train

Can I get a train from Cambridge to Bishops Stortford?
Certainly. When would you like to depart?
On Thursday after 20:15.
There is a train leaving Cambridge and heading to Bishops Stortford at 21:29 on Thursday. Would you like more information or to book a ticket?
No. I need to depart from bishops stortford and go to cambridge on thursday after 20:15.
I have one train that leaves at 21:29 and arrives by 22:07 on Thursday. Do you want me to book tickets?
Yes, that train would work better for me. Can you book tickets for 7 people please?
Booked! Reference number is S6S3LN7B . You will pay 70.7 GBP at the station.
Great! Thank you!
Thank you! I am glad I could help.