i want a train leaving from stevenage
user
when would you be departing and where would you like to go ?
assistant
i would like to leave on friday , and arrive in cambridge by 11:30 .
user
there is a train leaving stevenage at 9:54 on friday arriving in cambridge at 10:43 . would you like me to book this for you ?
assistant
yes , that is perfect . i need 5 seats please .