i am looking for a train that departs london kings cross on friday .
user
can i get a destination for this trip please ?
assistant
yes , i'll be going to cambridge , and i need to arrive by 13:15 .
user
there are 4 different trains departing at 5:17 , 7:17 , 9:17 , and 11:17 . each of those trains will arrive before 13:15 . would you like to book a train ?
assistant
any of those would be fine , i will be booking for 6 .