i need a train from cambridge that can arrive by 16:15 .
user
certainly . where is your destination ?
assistant
i want to go to broxbourne , please .
user
what day do you want to travel ?
assistant
the train needs to leave by saturday and i need 3 tickets . i would also like the reference number once you book it please ?
user
i booked it you reference number is duw21nut
assistant
thank you , that s all i needed .