User: Hello. I need your assistance.
Assistant: Hello. What can I assist you with?
User: I need you to book movie tickets for me for later today.
Assistant: Okay. Let's get started. What movie do you want to see?
User: Dolittle.
Assistant: Okay, where do you want to see Dolittle at?
User: I'd like the Regal that's downtown.
Assistant: Okay. What screen type do you prefer?
User: I just want the standard movie screen.
Assistant: Okay. What time do you want to see Dolittle?
User: Make it for 2:00PM.
Assistant: Okay. How many tickets do you need?
User: I just need 2 tickets. Hey, you know what? Change the screen type to IMAX.
Assistant: Okay, you need 2 tickets. You also want to change the screen type from standard to IMAX. Is that right?
User: Right.
Assistant: Okay. I've made the change. Give me a moment to check for availability.
User: Okay.
Assistant: I have found tickets available to see Dolittle on IMAX at the Regal at 2:00 PM. Do you want me to buy them?