Task-oriented dialogue about: train

I'd like a train to Cambridge that arrives by 19:30.
Where are you departing from?
I'm departing from Ely.
Do you have a day you would like to travel?
Yes, Wednesday. I also need the departure time and price, please.
The latest train arrives at 17:52 on a Wednesday, departs at 17:35 and the cost of the ticket is 4.40 pounds.
Okay that is all I need to know for now.
Okay. Let us know if we can be of further assistance.