In order for me to find the best train to suit you, can you provide me with a preferred departure or arrival time? There are 14 trains that arrive by 12:45. What time would you like to leave?
I need a train to Cambridge on Saturday. I'll be departing from Peterborough. We'd like to arrive by 12:45. What's the latest train I can take that will still get me there by 12:45?
{"__type": "Inform", "entity": {"__type": "Train", "arrive by": "12:45", "choice": "14"}} {"__type": "Request", "service": "train", "values": ["leave at"]}
{"__type": "Inform", "entity": {"__type": "Train", "arrive by": "12:38", "leave at": "11:48", "price": "13.20 GBP"}} {"__type": "Confirm", "entity": {"__type": "Train"}}
The latest train leaves at 11:48 and arrives at 12:38. The cost per ticket is 13.20 GBP. Would you like to book this train?