A: I have overtime next week.

B: What does that mean?

A: It means I'm working more hours than usual.

B: What are your usual hours?

A: I usually work 8 hours a day for five days.

B: How about next week?

A: I'm working another 8 hours on Saturday.

B: But Mom was planning a party on Saturday.

A: I can't make it.

B: Can't you tell your boss?

A: That's not how the real world works.

B: I wish the world was perfect.