generate response: I'm heading to stansted airport from Cambridge on Friday and any train that leaves after 08:15 will work. Intent: find_train. Slots: train-day=friday, train-departure=cambridge, train-destination=stansted airport, train-leaveat=08:15
Response: TR7827 leaves cambridge on Friday at 08:40 and arrives at Stansted airport at 09:08. Will that work for you?