What is your destination and what day would you like to leave?
I'd like a train from Birmingham New Street that will arrive by 12:45, please. I am coming to cambidge on friday.
{"__type": "Request", "service": "train", "values": ["day", "destination"]}
{"__type": "Inform", "entity": {"__type": "Train", "choice": "four", "leave at": "every hour starting at 05:40 until 09:40"}} {"__type": "Confirm", "entity": {"__type": "Train"}}
Great. There are four trains available with departure times every hour starting at 05:40 until 09:40. Would you like to book a ticket on one of them?