generate response: Please inform me of the train ID and price when the system is available. I am also looking for entertainment in the centre.. Intent: find_train. Slots: attraction-area=centre, attraction-type=entertainment, train-day=friday, train-departure=london kings cross, train-destination=cambridge, train-leaveat=16:30
Response: I have TR0835 leaving at 17:17 and arriving at 18:08. That has a travel time of 51 minutes and a price of 23.60 pounds.