Can you help me book a train on Sunday? 
Where is the destination?
I want to go to Ely. 
There are a number of trains leaving Cambridge for Ely on Sundays. Do you have a departure time in mind?
I need it to leave after 08:15 please. 
can i book for you?
Yes please book just one ticket for me. 
TR1159 leaves at 9:50 and the fee of 3.52 pounds is payable at the station. Is there anything else I can assist you with?
Yes, what is the reference number for the reservation?
The reference # is T27B8DUJ. Is there anything else I can help with today?
No that is all for now. Thank you for all your help.
Happy to be of help, and I hope you have a great day!