I'm looking for a train leaving on tuesday please.
I have a train going to London King's Cross that will leave at 05:00.
Actually I need to go to London Liverpool Street from Cabridge.
Alright, what time would you like to leave?
I would like to leave anytime after 20:15.
Ok, I have TR9616 that leaves at 21:39. Will that work for you?
Is that on Tuesday? If so that would work. I'll need the train ID and price. 
The train ID is TR9616.
I also need the price.
The price is 16.60 pounds.  Do you need any further assistance?
No, that's all. Thank you.
Thank you for allowing me to help you. Have a great day.