generate response: I also need a train. It should leave London liverpool Street after 12:45 on Wednesday. I am going to Cambridge.. Intent: find_train. Slots: train-day=wednesday, train-departure=london liverpool street, train-destination=cambridge, train-leaveat=12:45
Response: There earliest train after 12:45 is TR2826, departing London Liverpool Street at 13:39 on Wednesday. Would you like me to book a ticket for you?