I need a train to cambridge that leaves on saturday. I need to narrow this down a bit. Where will you be departing from? I will be departing from London Liverpool Street and need to arrive by 10:30. TR2503 can get you there by 09:07, can I help with anything else? What is the price? 13.28 pounds. Do you need me to book it? What's the departure time for that train? 05:39, 07:39, and 23:39