User: I want to buy movie tickets to see Possession.
Assistant: What theater did you want to go to?
User: Tell me the showtimes for Cima Ultraplex 20 and Northgate Cinemas 12 for today.
Assistant: Cima Ultraplex 20 has showings at 4:00pm 6:10pm 8:30pm. Northgate Cinemas 12 has showings at 6:00pm 8:10pm 10:25pm.
User: I want to go to the 10:25 at Northgate.
Assistant: The 8:10pm showing at Northgate Cinemas 12. Got it.
User: No. The 10:25 showtime at Northgate Cinemas 12.
Assistant: My mistake. I have corrected it to the 10:25pm showing at Northgate Cinemas 12. How many tickets did you need?