i am planning a trip in cambridge
user
sure , what can i help you find ?
assistant
i would like a train that leaves after 13:00 and goes to cambridge from stansted airport . i would like it to be on tuesday .
user
tr6312 departs at 13:24 and arrives by 13:52 . would you like a ticket ?
assistant
yes , make a booking for 1person make sure you get the reference number
user
i will take care of that booking for you now .
assistant
wait , i made a mistake . i am going from cambridge to stansted airport . leaving cambridge after 13:00 on tuesday . i still need just 1 seat .