i am looking for a train. The train should depart from Peterborough and should go to Cambridge.
There are many trains available.  Do you have a specific day or time in mind? 
I would like to travel on Sunday.
Great, and what time on sunday would you like to either leave after or arrive by?
I need to leave after 17:15.
can i book for you?
Yes I need it booked for 2 people. 
The total fee is 26.4 GBP payable at the station .
Reference number is : CW3O4QG9. Is there anything else I can assist you with?
No that would be it thank you very much.
You're welcome. Have an amazing trip!