User: hi i'd like to buy tickets for 1917
Assistant: sure, i can do that. where are you located?
User: i'm located in los angeles.
Assistant: what theater would you like? there's the landmark and the pacific theatres at the grove as two good choices.
User: i'll do the landmark, thanks
Assistant: what showtime would you prefer?
User: 3pm is best
Assistant: how many tickets do you want?
User: 2 tickets please.
Assistant: what screening preference would you like? standard or IMAX?
User: i'll do imax. actually, can i do knives out instead of 1917?
Assistant: absolutely. do you still want it at 3pm?
User: yes
Assistant: do you still want the landmark as the theater in los angeles?