User: I'd like to purchase movie tickets, please.
Assistant: Which movie?
User: 1917
Assistant: 1917 is showing at Potomac Mills AMC at 7:15 and 9:45 PM.
User: Purchase two tickets for a 3D screening at 7:15, please.
Assistant: The 7:15 showing is sold out. There are 37 tickets remaining for the 9:45 PM showing. 1917 is also showing at Manassas Mall Cinema at 7:00 PM and 10:00 PM.