i am looking for a train , it should leave on tuesday and should depart from cambridge
user
sure . do you have any preference for departure or arrival time ?
assistant
i want to depart from cambridge on tuesday at 14:00 and go to bishops stortford
user
tr8017 leaves at 15:29 . would you like me to book that for you ?
assistant
yes , please . i'll need 8 tickets .