i would like to book a train ticket , please .
user
where are your departure and destination sites ?
assistant
i am looking for a train that is leaving on friday after 21:45 .
user
there are 46 trains operating on friday at that time . can i get your destination to narrow down the results ?
assistant
yes . i would like to go to leicester . what trains are available ?
user
i have 2 trains going from cambridge to leicester . 1 leaving at 22:21 and 1 leaving at 23:21 . would you like to book 1 of these ?
assistant
i will go with the earlier departure , and i would like 2 seats please . i will also need a reference number .
user
you are all set for your 22:21 train reference number 1f6tadit
assistant
great , i also need a place to go in the east part of town .
user
are you looking for a particular type of attraction on the east end of town ? perhaps a museum ?
assistant
sure , a museum sounds good , what do you have that s free ?