Where are you departing from and what day would you like the train for? Sure thing. What will your destination be?
I am looking for a train leaving London Kings Cross and arriving by 14:30. I am leaving from london kings cross and I'd like to leave on thursday. I'm going to Cambridge
{"__type": "Request", "service": "train", "values": ["destination"]}
{"__type": "Inform", "entity": {"__type": "Train", "choice": "plenty", "leave at": "5:17"}} {"__type": "Confirm", "entity": {"__type": "Train"}}
you have plenty of trains leaving from 5:17 every second hour onwards. Do you want me to book one?