I need to book a train that leaves Cambridge after 17:30.
There are several trains that leave Cambridge after 17:30. Can you please tell me your destination so I can find the most appropriate one for you?
I would like to go to Norwich.
There are 49 trains, do you have a preferred day?
I need to leave on Sunday please.
TR1975 leaves at 17:36 and arrives by 18:55. Is that okay?
Yes, what is the travel time and price for that train?
The travel time is 79 minutes and the cost of the ticket is 14.08 pounds.
Could you also confirm the arrival time?
Of course, the arrival time of the train is Sunday at 18:55. 
Thank you very much for your help?
You are welcome.  Do you need any other information?
No, that'll be all!
All right, please enjoy your trip!