User: I'm interested in seeing the movie Dune.
Assistant: Ok, where would you like to watch the movie?
User: I'd like to watch it at the Arlington Courthouse AMC.
Assistant: Ok, what time would you like to watch the movie at?
User: I'd like to watch it at 8:00 PM.
Assistant: Ok, how many tickets do you need?
User: I only need one ticket.
Assistant: Ok, just one ticket.
User: That is correct.
Assistant: Ok, just to verify that is 1 ticket to see Rush at the Arlington Courthouse AMC at 8:00 PM.
User: Actually, I've changed my mind.
Assistant: Ok, what do you want to change?
User: I need another ticket.
Assistant: Ok, how many tickets do you need?