no air coming from dash vents window and defrost ok

Sounds like your vent door is stuck in one position. Either a faulty door motor or loose vacuum line under dash. The Climate control units can have issues as well but won[t know till you have a look. Often the vent flaps/motors are difficult to access when your dealing with things buried in the dash. I'd have a look at the blower motor area first. Sometimes with air flow issues there are obstructions actually in the blower venting such as leaves. Might be a good time to have a look at the in cabin filter if you have one, doubt that's the issue but they need swapped out from time to time. That's all the ideas for now...Good Luck!

I will check these out I appreciate it cuz I'm getting AC and heat from defrost vents but none from my AC vents but once in awhile it will open in blow and then it a quit and then go back to the top.

Feeling air blowing cold on top of the dash from where the defrost vents are but I'm not feeling air coming out my regular vents