I need a train leaving broxbourne on wednesday.  Can you book it for me?
Sure! What is your destination?
I need to arrive in Cambridge by 11:45.
I have train TR1819 that leaves at 10:32 and arrives in Cambridge at 11:32. Would that work for you? 
yeah, what's the price of the tickets?
The price of the tickets is 17.90 pounds. Shall I make a booking for you?
Yes, please. I'm also looking for a hotel that's cheap and in the north. 
There are no cheap hotels in the north but there are 2 guesthouses. Will those work?