Well, do you have anything planned for this Saturday?
Er, I'm kind of busy. Why do you ask?
I was wondering if we could get together and do something, like going to a concert or taking a walk by the lake.
I'd love to, but I'm really busy this weekend.
That's too bad.
I have promised to help with the cleaning of the house at 10:30 in the morning. And then, I have an appointment with the dentist at 12:30 pm.
How about after the dentist's appointment?
Then, I'll have to meet Jim at 4:30 pm to help him with the science project due on Monday morning.