There are several options, do you have a preference with the departure time? There is a train leaving at 19:17 and arriving at 20:08; does that work for you?
I need a train that departs from London Kings Cross that leaves on Wednesday. Sometime after 5:45 PM would be great. Yes, I need that booked for four people, please.
{"__type": "Inform", "entity": {"__type": "Train", "arrive by": "20:08", "leave at": "19:17"}} {"__type": "Confirm", "entity": {"__type": "Train"}}
{"__type": "Inform", "entity": {"__type": "Train", "destination": "Cambridge"}}
Just to confirm, the booking is for arriving in Cambridge, is that correct?