Question: To whom was the shuttle service that operates in the Northeastern region sold to under its former name in 1989?

full_context: Document 1: American Airlines Shuttle: American Airlines Shuttle is the brand name for American Airlines' hourly air shuttle service operating in the Northeastern United States. It serves Logan International Airport in Boston, LaGuardia Airport in New York City, and Ronald Reagan Washington National Airport in Washington, D.C.
Document 2: Business Express Airlines: Business Express Airlines (IATA: HQ) , often referred to as Business Express or BizEX, was an American regional airline founded as Atlantic Air in 1982. In an effort to appeal to its predominantly business commuter clientele, the airline assumed the Business Express name in 1985. In 1986 Pilgrim Airlines (Groton/New London), which itself had acquired NewAir (New Haven) about a year prior, was acquired by the airline. This opened the valuable New York and Washington, D.C. markets. Shortly thereafter, Business Express became one of Delta Air Lines's first Delta Connection carriers, along with Atlantic Southeast Airlines, Comair and SkyWest Airlines.
Document 3: Southeastern Airlines: Southeastern Airlines was a regional airline that was acquired by Atlantic Southeast Airlines, a Delta Connection carrier, on April 1, 1983. It was formed in 1982 by Atlanta entrepreneur Michael J. Brady, who had formerly been head of Eastern Metro Express, a feeder for Eastern Airlines.
Document 4: Eastern Air Lines Shuttle Flight 1320: Eastern Air Lines Shuttle Flight 1320, carrying passengers from Newark to Boston was hijacked around 7:30 P.M. on March 17, 1970 by John J. Divivo who was armed with a .38 caliber revolver. Captain Robert Wilbur Jr., 35, a former Air Force pilot who had only been promoted to captain six months prior, was shot in his arm by the suicidal hijacker. Despite his wounds, he flew his aircraft safely to a landing while talking to the tower, telling them his copilot was shot (but not himself) and needed an ambulance. His copilot, First Officer James Hartley, 30, was shot without warning by Divivo and collapsed. Despite being mortally wounded Hartley recovered sufficiently to rip the gun from Divivo's hand, and shoot the would-be hijacker three times before lapsing into unconsciousness, and eventually death. Although wounded and slumped between the seats, Divivo arose and began clawing at Captain Wilbur, attempting to force a crash. Wilbur hit Divivo over the head with the gun he had retrieved from the center console. The pilot was able to land the plane safely at Logan International Airport, and the hijacker was arrested immediately. On November 1, 1970, DiVivo hanged himself while awaiting trial at Charles Street Jail.
Document 5: US Airways: US Airways (formerly known as USAir) was a major American airline that ceased to operate independently when the Federal Aviation Administration granted a single operating certificate (SOC) for US Airways and American Airlines on April 8, 2015. Publicly, the two carriers appeared to merge when their reservations systems and booking processes were merged on October 17, 2015; however, other systems were still separate at that time. The airline had an extensive international and domestic network, with 193 destinations in 24 countries in North America, South America, Europe and the Middle East. The airline was a member of the Star Alliance, before becoming an affiliate member of Oneworld in March 2014. US Airways utilized a fleet of 343 mainline jet aircraft, as well as 278 regional jet and turbo-prop aircraft operated by contract and subsidiary airlines under the name US Airways Express via code sharing agreements.
Document 6: Eastern Air Lines Shuttle: Eastern Air Lines Shuttle (or Eastern Air Shuttle) was the brand name of Eastern's air shuttle. It began operations on April 30, 1961 and was sold in 1989 to Donald Trump, and later became the Trump Shuttle. In April 1992, the shuttle service began as the USAir Shuttle (presently American Airlines Shuttle). The shuttle originally flew between New York City, Boston, Washington, D.C. and Newark. The shuttle's slogan was "Imagine life without us."
Document 7: AmericanConnection: AmericanConnection was an American flight connection service brand name for the spoke-hub of U.S. mainline carrier American Airlines, under which regional airline operator Chautauqua Airlines operated feeder flights for American Airlines at its Chicago hub. American Airlines also uses affiliated companies (corporations under common ownership) operating under the American Eagle brand to provide regional service to its other hubs in addition to the AmericanConnection service that was operated by Chautauqua Airlines.
Document 8: US Airways Express: US Airways Express was the brand name for the regional affiliate of US Airways, under which a number of individually owned commuter air carriers and regional airlines operate short and medium haul routes. This code sharing service was previously operated as USAir Express. Mainline carriers often outsource to regional airlines to operate services in order to increase frequency, serve routes that would not sustain larger aircraft, or for other competitive reasons. US Airways Express operations were conducted from smaller markets in the United States, Canada, and the Bahamas primarily centered on US Airways' major hubs and focus cities. Upon the completion of US Airways' merger process with American Airlines, US Airways Express was rebranded as American Eagle on October 17, 2015.
Document 9: Logan International Airport: Logan International Airport (IATA: BOS, ICAO: KBOS, FAA LID: BOS) , officially known as General Edward Lawrence Logan International Airport, is an international airport located in the East Boston neighborhood of Boston, Massachusetts, United States (and partly in the town of Winthrop, Massachusetts). It covers 2384 acre , has six runways and four passenger terminals, and employs an estimated 16,000 people. It is the largest airport in the New England region and 17th-busiest airport in the United States, with 33.5 million total passengers in 2015. It is named after General Edward Lawrence Logan. In 2016, Massport reported an 8.5% increase in passenger traffic comparing 2015 to 2016, giving the airport a total of about 36.3 million passengers.
Document 10: US Airways Shuttle: US Airways Shuttle was the brand name for US Airways' hourly air shuttle service operating in the Northeastern United States. It served Logan International Airport in Boston, LaGuardia Airport in New York City, and Ronald Reagan Washington National Airport in Washington, D.C.
Document 11: Capital Airlines: Capital Airlines was an airline serving the eastern, southern, southeastern, and midwestern United States. Capital's headquarters were located at Washington National Airport (now Reagan Airport) across the Potomac river from Washington, D.C. where crew training and aircraft overhauls were also accomplished. In the 1950s Capital was the fifth largest United States domestic carrier by passenger count (and sometimes by passenger-miles) after the Big Four air carriers (American, United, TWA, and Eastern). Capital merged with United Airlines in 1961.
Document 12: American Airlines: American Airlines, Inc. (AA) is an American airline headquartered in Fort Worth, Texas, within the Dallas-Fort Worth metroplex. It is the world's largest airline when measured by fleet size, revenue, scheduled passenger-kilometers flown, and number of destinations served. American together with its regional partners operates an extensive international and domestic network with an average of nearly 6,700 flights per day to nearly 350 destinations in more than 50 countries.
Document 13: Airlink (helicopter shuttle service): Airlink was the brand name of a helicopter shuttle service which ran between London's two main airports, Gatwick and Heathrow, between 1978 and 1986. Operated jointly by British Caledonian Airways and British Airways Helicopters using a Sikorsky S-61 owned by the British Airports Authority, the "curious and unique operation" connected the rapidly growing airports in the years before the M25 motorway existed. Although at one point the service was granted a licence to operate until 1994, the Secretary of State for Transport intervened and revoked the licence with effect from February 1986—by which time the continued existence of the link had become "a highly controversial issue" debated by Members of Parliament, airlines, airport operators, local authorities and many other interest groups. No similar service has operated between the airports since Airlink's cessation.
Document 14: Logan International Airport: Logan International Airport (IATA: BOS, ICAO: KBOS, FAA LID: BOS) , officially known as General Edward Lawrence Logan International Airport, is an international airport located in the East Boston neighborhood of Boston, Massachusetts, United States (and partly in the town of Winthrop, Massachusetts). It covers 2384 acre , has six runways and four passenger terminals, and employs an estimated 16,000 people. It is the largest airport in the New England region and 17th-busiest airport in the United States, with 33.5 million total passengers in 2015. It is named after General Edward Lawrence Logan. In 2016, Massport reported an 8.5% increase in passenger traffic comparing 2015 to 2016, giving the airport a total of about 36.3 million passengers.
Document 15: Ultimate Air Shuttle: Ultimate Air Shuttle is an airline based in Cincinnati, Ohio. Services are public charter flights that operate on a published schedule and are sold to the public. Its Cincinnati-based flights mostly depart from the smaller Cincinnati Municipal Lunken Airport. The airline serves key business routes that were reduced by Delta Air Lines and Comair.
ground_truth: Donald Trump