Why does my car stall while driving and it's an auto? on 2000 Chrysler Concorde

It's like it stops giving gas cause rpm goes down and some times it'll catch and keep going but most times it's shuts off and takes at least a half an hour to crank back up

Asked by for the 2000 Chrysler Concorde
could be several issue start with having it scanned for codes and reading data while on a test drive