Task-oriented dialogue about: train

I am looking for a train from norwich on monday.
I found 19 trains that match your request. Where is your destination?
The train should leave after 17:00 and should go to cambridge.
How about TR7514 that leaves at 17:16 on Monday?
That would be perfect. Could you book it for 6 people and provide me a reference number?
I've booked 6 tickets, the fee is 105.6 and the reference number is 4REIIUM5 .
Thank you for your help.
You are welcome. Can I assist with anything else today?
No that is all. Thanks, goodbye.
Thank you, goodbye