Question: What's the former name of the regional airline providing regularly scheduled passenger service at Churchill Falls Airport?
Context: Air Hawaii was a scheduled passenger airline providing service between Honolulu and the U.S. West Coast cities of Los Angeles and San Francisco.  The airline advertised its service as ""High Class.  Low Fares.""  Founded by Michael J. Hartley, who previously started The Hawaii Express and would later co-found CheapTickets, Air Hawaii began operations between Honolulu and Los Angeles on November 22, 1985, and added service between San Francisco in December.  The airline almost immediately ran into financial problems and discontinued operations on February 19, 1986. Air Cortez was a United States FAR 121 and 135 commuter airline that operated from 1977 to 1986.  Air Cortez served a number of cities in Southern California, Arizona, Nevada and Baja California.  In 1981, Air Cortez was operating nonstop passenger service between Ontario Airport (ONT) and Yuma, Arizona (YUM) with a Beech 18 prop aircraft.  In 1985, the airline was operating scheduled passenger service between Las Vegas (LAS) and Grand Canyon National Park Airport (GCN) with Fairchild F-27 turboprop and Cessna 402 prop aircraft.  Air Cortez also operated scheduled international passenger service to Mexico with the Fairchild F-27 on a routing of Ontario-San Diego-Guaymas-Mulege-Loreto. Water Street Station is a former station of the Baltimore and Ohio Railroad in Wilmington, Delaware, designed by Frank Furness.  The station saw its last regularly scheduled passenger train on April 28, 1958, when the Baltimore & Ohio railroad ended all passenger service north of Baltimore. 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. The Churchill Falls Generating Station is a hydroelectric power station located on the Churchill River in Newfoundland and Labrador.  The underground power station can generate 5,428 MW, which makes it the second-largest in Canada, after the Robert-Bourassa generating station.  The generating station was commissioned between 1971 and 1974.  The facility is owned and operated by the Churchill Falls Labrador Corporation Limited (CFLCo), a joint venture between Nalcor Energy (65.8%) and Hydro-Québec (34.2%). Atlantic Gulf Airlines was a regional airline founded by Tom Tepper and Kerry Broaddus in Florida that began operations in October 1983.  Service started with two British-manufactured Vickers Viscount four engine turboprop airliners.  Atlantic Gulf was one of very few airlines in the U.S. to operate the Viscount in scheduled passenger service (Continental Airlines and United Airlines operated Viscounts during the 1960s as did Aloha Airlines and Hawaiian Airlines).  The airline began with service from Miami to St. Petersburg, Florida.  By early 1984, the airlines had added Convair 580 turboprops to the fleet and was operating Miami (MIA) - St. Petersburg (PIE) - Atlanta (ATL) service.  The fleet grew to three Convair 580s and cities such as Tallahassee and Fort Lauderdale were added to the route system. Chongqing Wushan Airport (), formerly Wushan Shennüfeng Airport () is an airport under construction in Wushan, a county in Chongqing Municipality, China.  The airport will be located at the border of Wushan and Fengjie counties, 15 kilometers from the county seat, and will mainly serve tourists to the nearby Three Gorges region.  Construction began on April 20, 2015, and is scheduled to be completed by 2017.  When completed it will become the fourth airport with regularly scheduled passenger service in the municipality of Chongqing. PAL Airlines (formerly Provincial Airlines) is a regional airline with headquarters at St. John's International Airport in St John's, Newfoundland and Labrador, Canada.  PAL operates scheduled passenger, cargo, air ambulance and charter services.  PAL is the commercial airline arm of the PAL Group of Companies.  In addition to its head office, it also has offices in Halifax, Nova Scotia (Halifax Stanfield International Airport) and Happy Valley-Goose Bay (CFB Goose Bay).  PAL is the second largest regional airline operator in Eastern Canada next to Air Canada Express. Churchill Falls Airport (IATA: ZUM, ICAO: CZUM) is owned and operated by Churchill Falls Labrador Corporation Limited.  Provincial Airlines provides regularly scheduled passenger service at the airport, which handled about 1,400 passengers annually over between 2000 and 2003.  The airport is located 4 NM northwest of Churchill Falls, Newfoundland and Labrador, Canada. Telluride Regional Airport (IATA: TEX, ICAO: KTEX, FAA LID: TEX) is a public airport six miles west of Telluride, in San Miguel County, Colorado.  It is owned by the Telluride Regional Airport Authority.  At an elevation of 9,078 feet (2767 m) above sea level, it once again became the highest commercial airport in North America with scheduled passenger flights when Great Lakes Airlines resumed scheduled passenger service in December 2016; the airline had previously left the airport in 2014.
Answer: Provincial Airlines