I need a train to peterborough from cambridge on sunday. There are many trains, beginning at 05:19, do you have a time preference? I would like to leave after 18:15 please. Is there a time you need to arrive by? No, thank you. I just need the train ID and price of the ticket. Train TR6662 leaves at 18:19 and the price is 13.20 pounds. Is there anything else I can do for you today? No thanks that is all I need. Thanks for the assistance. thanks too for choosing us