User: need to get tickets
Assistant: To a movie?
User: yes
Assistant: what showing?
User: Dolittle, already decided.
Assistant: Ok, for what time?
User: 7:00 PM
Assistant: what theater?
User: cinerama
Assistant: what town?
User: seattle
Assistant: Ok, that is available, do you want to purchase
User: hold one, i might need to change the movie
Assistant: ok, let me know
User: ok, looking for 1917 instead
Assistant: Ok, that is available, do you want me to get them?