Domains: train

user: I need to catch a train on Thursday, departing from Birmingham New Street.

assistant: Okay and what is your destination please?

user: I am travelling to Cambridge.

assistant: Please specify your choice of time for departure and arrival

user: I need to leave after 14:45.

assistant: What time do you need to arrive by?

user: I don't have an arrival preference.

assistant: I have the TR2148 that leaves at 15:40 for 75.10 pounds. Would you like to book it?

user: Yes I need 6 tickets and the reference number.

assistant: Sure thing, I will work on that now and be back with you in a moment.