I am planning a trip in Cambridge That sounds like fun! What information can I help you find? I need to first find out what train will take me away after I am done. I need to get to Peterborough on Sunday by 21:45 Where will you be departing from? Departing from Cambridge. I need the departure time, train ID and price. Okay, we've got a few options. The best looks like train TR6958 that leaves Cambridge at 20:34 and arrived in Peterborough at 21:24. The price is 13.2 pounds.