I would be happy to help you with your request, first I will need to know your destination and what day you would like to travel.
I need to take a train from cambridge. I would like to leave after 14:30. I've like to travel to Peterborough on Wednesday, please.
{"__type": "Request", "service": "train", "values": ["day", "destination"]}
{"__type": "Inform", "entity": {"__type": "Train", "leave at": "14:34"}} {"__type": "Confirm", "entity": {"__type": "Train"}}
I have on departing at 14:34. Would you like me to book it?