User: I need movie tickets.
Assistant: Which movie?
User: For 1917.
Assistant: What is your theatre of choice?
User: Regal.
Assistant: What time do you want it for?
User: 530
Assistant: Excellent. How many tickets?
User: Just one.
Assistant: Have a day slot?
User: Friday.
Assistant: Finally what's your screen preference?
User: Imax.
Assistant: That is an update, is this ok.
User: Sure.
Assistant: I will book it now.
User: Wait, add an extra ticket for 1917.
Assistant: Certainly.