hello , i need to catch a train on friday . can you help me find 1 leaving after 11:30 ?
user
what are your departure and arrival location -s ?
assistant
i'll be going from cambridge to broxbourne .
user
i have a train that leaves at 12:01 and arrives by 13:01 . would you like me to book that train ?
assistant
yes , i will need 2 tickets please .