Task-oriented dialogue about: train

I'm looking for a train on Saturday that will take me into cambridge.
Where will you depart from?
I will be departing from norwich.
There are 19 trains do you have a time you'd like to travel?
Yes I need to arrive by 20:00.
I have one arriving at 19:35. It leaves Norwich at 18:16. Does that work?
Sure, they are normally on time. Could you book that for 2 people please?
Certainly. I have booked you on the 18:16 arriving at 19:35 for 2 people. your reference number is C4O2XOZA . Will that be all?
Yes, thanks for your help!
It was my pleasure to help. Have a wonderful day.