i am looking to book a train .
user
certainly . may i ask where you want to depart from ?
assistant
i would like to leave from the closest station to my location .
user
could you tell me your location , which area of town or what business you are departing from ?
assistant
we are leaving london kings cross and need to do so after 12:45 on friday for 6 people and can i get the reference number for the booking ?
user
to clarify , are you looking for a train to cambridge ? all friday trains from london kings cross go to cambridge .
assistant
i need to depart from london kings cross and go to cambridge .
user
booked ! you leave at 13:17 , your reference number is 3wicpfqp , you will pay 141.6 at the station .
assistant
okay thank you . that is all i need .