Question: Who was the president and CEO in 1988  of an American regional airline headquartered at Dayton International Airport in Vandalia, Ohio ?

Context paragraphs:
Vectren Dayton Air Show: The Vectren Dayton Air Show is an annual event held at the Dayton International Airport in Vandalia, Ohio, eight miles north of Dayton, Ohio.  This Air Show takes place on a weekend in mid-July each year, but as of 2013, late June.  The history of this flight exhibition dates back to 1910 and the Wright Company.  Dayton is the hometown of the Wright Brothers and is where Orville and Wilbur built their first powered plane.  The show's main sponsor is Vectren and it is considered to be one of the country’s premier aviation events.

Regional Airline Association: The Regional Airline Association (RAA) is a business association founded in 1975 that represents 31 North American regional airlines and 280 associate, non-airline members.  This includes manufacturers of products and services supporting the regional airline industry.  The RAA is the collective bargaining voice for its members' interests and lobbies on their behalf before the United States Congress, Department of Transportation, Federal Aviation Administration and other federal agencies.  The RAA represents the financial and economic interests of regional airline employers and regional airline support industry employers.  The Regional Airline Association does not represent financial or economic interest of airline employees, either union or other.  The RAA is headquartered in Washington DC.

Taquan Air: Taquan Air is the operating name for Venture Travel, LLC, an American regional airline headquartered in Ketchikan, a city in the southeastern portion of the U.S. state of Alaska.  It operates domestic scheduled passenger and charter services.  Its base is Ketchikan Harbor Seaplane Base, which shares the same harbor and airspace as Ketchikan International Airport.  As per the United States Department of Transportation in a report dated August 2, 2010, Taquan Air is a "U.S. Certificated Air Carrier", and is 1 of 125 such carriers in the US.

Vandalia, Ohio: Vandalia is a city in Montgomery County, Ohio, United States, and a suburb of Dayton.  Its population was 15,246 during the 2010 census.  In addition to being the city closest to Dayton International Airport, Vandalia lies at the crossroads of I-75 and I-70, making it a major hub for business.

Dayton International Airport: Dayton International Airport (IATA: DAY, ICAO: KDAY, FAA LID: DAY) (officially James M. Cox Dayton International Airport), formerly Dayton Municipal Airport and James M. Cox-Dayton Municipal Airport, is ten miles north of downtown Dayton, in Montgomery County, Ohio.  The airport is within the city limits of Dayton, in an exclave of Dayton not contiguous with the rest of the city.  Its address is 3600 Terminal Drive, Dayton, Ohio 45377.

PSA Airlines: PSA Airlines, Inc. is an American regional airline headquartered at Dayton International Airport in Vandalia, Ohio, that flies under the American Eagle brand for American Airlines.  PSA is a wholly owned subsidiary of American Airlines Group.  PSA has crew bases in Washington, D.C.; Knoxville, Tennessee; Charlotte, North Carolina; Cincinnati, Ohio; and Dayton, Ohio.  It has maintenance bases in Charlotte, North Carolina; Cincinnati, Ohio; Dayton, Ohio and at the Akron–Canton Airport in Green, Ohio.

Keith Houk: Keith Houk was the president and CEO of US Airways subsidiary PSA Airlines.  He joined PSA as its CEO in 1988, and became president and CEO of Allegheny Airlines, another US Airways subsidiary, in 1997.  He returned to lead PSA in January, 2005.  Houk is a business graduate of Ohio University and a United States Air Force veteran.  In 2014, he retired from PSA after 25 years of service to the company.

Dayton–Wright Brothers Airport: Dayton–Wright Brothers Airport (IATA: MGY, ICAO: KMGY, FAA LID: MGY) is a public airport located 10 miles (16 km) south of the central business district of Dayton, Ohio, located mainly in Miami Township, Montgomery County and partly in Clearcreek Township, Warren County, near the suburb of Springboro.  It is owned and operated by the City of Dayton and serves as the reliever airport for Dayton International Airport.  It mainly serves corporate and personal aircraft users.  The airport's identifying code, MGY, is a reference to its former name of Montgomery County Airport.

PenAir: Peninsula Airways, operating as PenAir, is a U.S. based regional airline headquartered in Anchorage, Alaska.  It is Alaska's second largest commuter airline operating scheduled passenger and cargo service, as well as charter and medevac services throughout the state.  It also operates scheduled passenger service in several regions of the continental U.S. Its main base is Ted Stevens Anchorage International Airport, with other hubs located at Portland International Airport in Oregon, Boston Logan International Airport in Massachusetts and Denver International Airport in Colorado.  PenAir currently has a code sharing agreement in place with Alaska Airlines with its flights operated in the state of Alaska as well as all of its flights in the lower 48 states appearing in the Alaska Airlines system timetable.

Air Wisconsin: Air Wisconsin Airlines is a regional airline based at Appleton International Airport in the town of Greenville, Wisconsin, United States, near Appleton.  Air Wisconsin is the largest privately held regional airline in the United States.  It currently operates regional jet flights as American Eagle under contract to American Airlines via a code sharing agreement, serving cities in the U.S. and Canada with hubs at Boston Logan International Airport (BOS), Charlotte Douglas International Airport (CLT), Philadelphia International Airport (PHL) and Ronald Reagan Washington National Airport (DCA) .  Air Wisconsin previously operated United Express service on behalf of United Airlines followed by US Airways Express service on behalf of US Airways prior to becoming an American Eagle regional air carrier.  The company has announced it will once again partner with United Airlines as a United Express code sharing air carrier with primary hubs to be located at Chicago O'Hare International Airport (ORD) and Washington Dulles International Airport (IAD) beginning in September 2017 and will be "exclusively operating" as United Express by March 2018.

Supporting paragraphs: Keith Houk PSA Airlines
Answer: Keith Houk