i need a train to cambridge that will get me there by 20:30 .
user
alright , where will you be departing from ?
assistant
the train should depart from bishops stortford and leave on thursday .
user
ok perfect ! i have tr0060 which will arrive by 20:07 . would you like me to book this for you ?
assistant
no , that will not be necessary . i do need the departure time , and travel time though .