hi , i am looking for a train departing cambridge that leaves after 21:45 . can you help me with a reservation ?
user
absolutely i can help with that . what day and to what destination are you traveling ?
assistant
i am traveling to london kings cross from cambridge .
user
all trains leave at 23:00 , what time would you like to arrive ?
assistant
i do not have a specific arrival time .
user
do you have a day you will be traveling ?
assistant
i will be traveling on saturday .
user
the tr4898 leaves at 23:00 . do you want a ticket ?
assistant
yes for 5 please .
user
i made reservations for you your reference number is 0f1r2m73 .
assistant
thanks ! i also need a guesthouse to stay in in the north .