Task-oriented dialogue about: train

Hello, I'm looking for a train to get me to london kings cross.
Ok. Will you be departing from Cambridge?
Yes, Cambridge and I want to leave on Sunday. I need travel time
Travel time is 51 minutes. What time were you hoping to leave?
I would like to leave after 13:45.
There is a train that leaves at 15:00 would you like me to book that train for you?
No thanks, I just needed the travel time for the train departing at 15:00.
The travel time for TR 9386 is 51 minutes.
Thanks, that's all I needed. Goodbye!
Thank you for using Cambridge TownInfo centre, goodbye!