You have several options. If traveling by train, where would you like to depart?
I am traveling to peterborough and need to get there by 08:00. I want to leave from Cambridge.
{"__type": "Inform", "entity": {"__type": "Train", "choice": "several"}} {"__type": "Request", "service": "train", "values": ["departure"]}
{"__type": "Inform", "entity": {"__type": "Train", "arrive by": "7:56", "departure": "Cambridge", "leave at": "7:06", "trainid": "TR2016"}}
I would recommend TR2016 which leaves Cambridge at 7:06 and arrives at 7:56.