i need a train leaving cambridge after 17:30 .
user
okay , is there somewhere specific you would like to travel to ?
assistant
i want to go to stansted airport on saturday .
user
how many tickets would you like ?
assistant
i am not sure yet , could you tel me how long the train takes to get there ?
user
the train ride lasts 28 minutes . would you like to book a ticket now ?
assistant
no , thank you .
user
ok , is there another train i can check for you ?
assistant
no that is all thank you .
user
okay do not hesitate to call us if you need further assistance .
assistant
thank you for your assistance bye !