I'd like to buy tickets for a movie tonight
Great! What movie would you like to see?
Star Wars
OK! And what time would you like to see the movie?
Around 7pm
Great. What city are you in?
Salt Lake
Perfect. There is a showing at 7:10pm in Salt Lake
That's good
How many tickets do you need?
Two
There are not two tickets available for Star Wars at 7:10pm
Oh. What about earlier, around 6?
There are no tickets available earlier.
Oh shoot. Well what about Little Women at 7?
Little Women is sold out at 7pm
Is it available at 6?
No, there are no tickets available tonight for Little Women.
Oh ok. Nevermind then.
OK. I will not buy any tickets at this time.