In Avengers: Infinity War, it is observed that
after following Dr. Strange being abducted by Ebony Maw into a spaceship, Tony Stark receives a phone call from Pepper Potts which loses connectivity after a few seconds of talking and his virtual assistant goes offline too. Now, I am assuming this is because of the increasing distance from earth.
Why couldn't/didn't Stark fit the virtual assistant mechanism into his already impressive nanotech powered suit? In universe answers would be appreciated.