I need a train for Saturday at 13:00 and I will be traveling from Cambridge to London kings cross. Please book it for 7 people. You are all booked for the TR4003 train. Price is 132.16 GBP. Reference number B02EELPU . Is there anything else i can help you with? Yes, my apologies, but can you confirm that the TR4003 train leaves after 13:00? It leaves right at 13:00. If you'd like to leave later, the next train departs at 15:00 The 13:00 train is perfect. Please book 7 tickets. Thanks. It has been booked and your Reference number is: B02EELPU . Is there anything else I can do for you?