hi there . i need help finding a train leaving cambridge on sunday .
user
okay , train tr8131 leaves at 7:17 on sunday and arrives by 8:08 . would you like me to book that for you ?
assistant
yes please book it
user
excellent , how many are travelling ?
assistant
the train should be arriving at london liverpool street and leave after 10:00 . i would like 4 tickets for that specific train . i also need the reference number .
user
i would recommend tr5767 which leaves cambridge at 10:21 and arrives in leicester at 12:06 . would you like this to be booked for you ?
assistant
let s back up a bit here . i need to get to london liverpool street , not leicester .
user
i have tr9025 that i can book for you that departs cambridge at 11:59 and arrives at liverpool street at 13:27 . does that work for you ?
assistant
it does . please book for 4 people and give me the reference number .