generate response: I'm departing from birmingham new street on Saturday and I'd like to leave after 12:45.. Intent: find_train. Slots: train-day=saturday, train-departure=birmingham new street, train-destination=cambridge, train-leaveat=12:45
Response: How about TR8390 that leaves birmingham new street at 13:40 on Saturday. It arrives in cambridge at 16:23. The price is 60.08. Shall I book it?