User: Hi, I need help purchasing movie tickets.
Assistant: I am happy to help you with this.
User: Great, let's do it.
Assistant: Ok, what movie did you have in mind?
User: I want to see Mulan today
Assistant: Great, where do you live?
User: I live in Hillview, OR
Assistant: Ok, would the Mountain AMC 16 theater work for you?
User: Yes, that is the best one nearby.
Assistant: Ok, who will be seeing the movie?
User: Just me and my friend
Assistant: Ok, the showtimes for Mulan today are:4:00pm 6:10pm 8:30pm 10:40pm
User: actually I just realized my friend would like to see something else. Can I change the movie?
Assistant: Yes, which one to?