Hendra : Hi, Yoga. Are you busy now?
Yoga : No, I'm not. I'm boring here. What happen?
Hendra : Are you still needing a ball for basketball?
Yoga : Yes. I am needing it. I want to play basketball if there is a ball. I'm so boring in my holiday.
Hendra : Okay! Let's go to my house. My brother is at home now, so I will try to borrow it for you.
Yoga : That's good. Let's go!
How many people are there in the dialogue?