i am looking for a train to broxbourne .
user
what day would you like to travel on ?
assistant
i would like to leave on tuesday after 21:00 from cambridge . can you accommodate ?
user
yes , there are trains departing at 21:01 , 22:01 and 23:01 on tuesday . which time would like ?
assistant
2 tickets on the 21:01 , please . and can you give me the reference number once that s booked ?
user
i have booked your tickets . your reference number is ljwdinyn . is there anything else i can do for you ?
assistant
thanks . i would also like to go a museum on the east side .
user
i found 4 museums , i would recommend the cambridge artworks as it is free to enter . would you like any information on it ?
assistant
just the address , please .