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Any way to reset position of the AC

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I don't think there is a factory reset option for the climate control system dashboard vents. If the air stream for the driver or passenger dashboard vent is split in two streams you can combine the air streams into a single stream by pinching two fingers while touching the dash board vent graphic on the climate control screen.
 
I don't think there's a default (stock or factory reset) direction for the vents. They are going to just be where ever the techs who did QA on the car left them, after checking that they work.

Aim then somewhere you like them, just like with any vents in any car.