Question: Who is American Airlines partner headquartered in Barnstable Municipal Airport. 
Context: Air New England Flight 248 was a commercial airliner that crashed on approach to Barnstable Municipal Airport in Barnstable County, Massachusetts, on 17 June 1979.  All of those on the aircraft survived with the exception of the pilot, who was killed instantly. Barnstable ( ) is a city, referred to as the Town of Barnstable, in the U.S. state of Massachusetts and the county seat of Barnstable County.  Barnstable is the largest community, both in land area and population, on Cape Cod.  At the 2010 census it had a population of 45,193.  The town contains several villages (one of which is also named Barnstable) within its boundaries.  Its largest village, Hyannis, is the central business district of the county and home to Barnstable Municipal Airport, the airline hub of Cape Cod and the islands of Martha's Vineyard and Nantucket.  Additionally, Barnstable is a 2007 winner of the All-America City Award. Gogo Inc. is a provider of in-flight broadband Internet service and other connectivity services for commercial and business aircraft, headquartered in Chicago, Illinois.  17 airlines partner with Gogo to provide in-flight WiFi, including British Airways, Aer Lingus, Iberia, Gol linhas aereas, Beijing Capital, Aeromexico, American Airlines, Air Canada, Alaska Airlines, Delta Air Lines, Japan Airlines, JTA, United Airlines, Hainan Airlines, Virgin America, Vietnam Airlines and Virgin Atlantic.  Gogo Inc. is a holding company, operating through its two subsidiaries, Gogo LLC and Aircell Business Aviation Services LLC (now Gogo Business Aviation Inc.).  According to Gogo, over 2,500 commercial aircraft and 6,600 business aircraft have been equipped with its onboard Wi-Fi services.  The company is also the developer of 2Ku, the new in-flight (satellite solution) Wi-Fi technology. Hyannis Air Service, Inc., operating as Cape Air, is an airline headquartered at Barnstable Municipal Airport in Barnstable, Massachusetts, United States.  It operates scheduled passenger services in the Northeast, the Caribbean, Midwest, Eastern Montana and Micronesia.  Flights in Micronesia are operated as United Express flights through a code share partnership with United Airlines.  Flights between Hyannis and Nantucket, Massachusetts, are operated under the Nantucket Airlines brand, also operated by Hyannis Air Service, Inc. Charlotte Douglas International Airport (IATA: CLT, ICAO: KCLT, FAA LID: CLT) is a joint civil-military public international airport located in Charlotte, North Carolina, United States.  Established in 1935 as Charlotte Municipal Airport, in 1954 the airport was renamed Douglas Municipal Airport after former Charlotte mayor Ben Elbert Douglas, Sr. The airport gained its current name in 1982 and, as of September 2017, it is the second largest hub for American Airlines after Dallas/Fort Worth International Airport, with service to 161 domestic and international destinations.  As of 2016 it was the 5th busiest airport in the United States, ranked by passenger traffic and aircraft movements.  It was also the 7th business airport in the world ranked by aircraft movements Charlotte is the largest airport in the United States without any nonstop service to Asia.  The airport serves as a major gateway to the Caribbean Islands.  CLT covers 5,558 acres (2,249 ha) of land. Cape Girardeau Regional Airport (IATA: CGI, ICAO: KCGI, FAA LID: CGI) is a city-owned, public-use airport in Scott County, Missouri, United States.  It located five nautical miles (6 mi, 9 km) southwest of the central business district of Cape Girardeau, a city in Cape Girardeau County, Missouri.  The airport is used for general aviation, and has scheduled service by American Airlines partner Cape Air with subsidized Essential Air Service program flights to Lambert-St.  Louis International Airport. Barnstable Municipal Airport (IATA: HYA, ICAO: KHYA, FAA LID: HYA) , also known as Boardman/Polando Field, is a public airport located on Cape Cod, one mile (1.6 km) north of the central business district of Hyannis, in Barnstable County, Massachusetts, United States.  This airport is publicly owned by Town of Barnstable.  It is Cape Cod's major airport as well as an air hub for the Cape and the Islands (Martha's Vineyard and Nantucket).  The airport is served by scheduled commercial flights as well as charters and general aviation.  Barnstable Municipal Airport served as a hub for Nantucket-based commuter airline Island Airlines until its shutdown in 2015. Rectrix Aviation is a jet charter and commuter airline service that primarily serves New England, Florida and the east coast.  Its commercial operations are based out of Nantucket Memorial Airport and Barnstable Municipal Airport in Nantucket, MA and Hyannis, MA, respectively.  The only commercial flight it operates is between Nantucket and Hyannis.  Rectrix Shuttle, the commuter service, was founded when Island Airlines of Nantucket shut down. Colgan Air Flight 9446 was a repositioning flight operated by Colgan Air for US Airways Express.  On August 26, 2003 a Beech 1900D crashed into water 100 yards offshore from Yarmouth, Massachusetts, United States shortly after taking off from Barnstable Municipal Airport in Yarmouth.  Captain Scott Knabe and First Officer Steven Dean died.  The plane was bound for Albany, New York, U.S. Island Airlines was a commuter airline headquartered at Barnstable Municipal Airport in Barnstable, Massachusetts, United States which operated hourly scheduled flights between the island of Nantucket and Hyannis, Massachusetts.  Island Airlines (Hyannis) along with its sister company, Cape & Islands Air Freight, ceased operations on December 11, 2015.
Answer: Cape Air