B:No, not yet.

A: When were you planning on doing that?

B: I'm going to clean it up later.

A: Didn't I ask you to clean it up earlier?

B: I'm going to clean it.

A: I want you to vacuum in your room, and don't forget to dust everything.

B: I know. I'll do it.

A:Make sure you clean it up before you do anything else.

B: I'm not going anywhere until later, so I'll clean it then.