Task-oriented dialogue about: train

I'd like a train to Cambridge that arrives by 11:30.
Where are you departing from?
I'm departing from Ely.
I can reserve a seat on TR2704 departing at 9:35 and arriving in Cambridge at 9:52. How many tickets will you need?
It doesn't matter to me.
If you wouldn't like me to book you a ticket, is there anything else you need?
Can you tell me what the travel time for that train is?
That will be a 17 minute train ride.
Okay great. That is all thank you.
Okay great. Thanks fro calling.