Domains: train

user: I need help finding a train leaving Cambridge after 20:45.

assistant: Many trains leave Cambridge around 20:45, what is the destination?

user: I need to get to london liverpool street.

assistant: I have several options for you, and the price and exact departure time varies by day of the week. Do you have a day preference?

user: I would like to leave on Thursday

assistant: Train TR3695 leaves 21:59 and arrives on 23:27. Would you like to book it?

user: Thanks, that's all. Good bye.

assistant: welcome again some other time