i need a train to ely on monday .
user
i can help you with that . can you please tell me what station you would like to depart from ?
assistant
i need to depart from cambridge after 21:45 .
user
there are 2 trains making that trip . 1 leaves at 21:50 , the next at 23:50 . would you like to book 1 of those trains ?
assistant
yes , i would like to book the train that leaves at 21:50 .
user
i would like to book the train leaving at 21:50 .
assistant
did the booking go through ?