Question

2. I am not sure when I can meet, I’m pretty busy. is this non-assertive communication?

Answer 1

That is not non-assertive behavior. Non assertive behavior is when you are feeling dishonest or indirect emotionally.

Answer 2

I would say it is non-assertive. Assertive would say, "I can't meet with you." I think the other responder is mixing up non-assertive with passive-aggressive.