i am trying to book a train to peterborough . can you help me ?
user
there are many trains to peterborough . can you tell me where you will be leaving from and what day and time you are interested in traveling ?
assistant
i am not sure what time i need to leave but has to be saturday and depart from cambridge to arrive by 11:45
user
i can book you for an arrival by 11:24 and leaves at 10:34 . would you like me to book that for you ?
assistant
yes , please book that for me please .