What is the name of the regional airline brand name for Delta Air Lines that utilizes both Atlantic Southeast Airlines and Endeavor Air?
Atlantic Southeast Airlines: Atlantic Southeast Airlines (ASA) was an American airline based in the A-Tech Center in College Park, Georgia, flying to 144 destinations as a Delta Connection carrier and, as of February 2010, commenced service as a United Express carrier. Delta Connection: Delta Connection is a regional airline brand name for Delta Air Lines, under which a number of individually owned regional airlines operate short- and medium-haul routes. Delta Connection:  Delta's lone wholly owned regional airline, Endeavor Air, also resides under the Delta Connection banner.
Delta Connection