Question: Churchill Falls Airport has service through which regional airline, headquartered in St. John's, Newfoundland?

Context paragraphs:
Royal Newfoundland Constabulary: The Royal Newfoundland Constabulary (RNC) is the provincial police service for the province of Newfoundland and Labrador.  The primary function of the RNC is to enforce provincial laws, the Criminal Code, and provide security details for VIPs and the Premier of Newfoundland.  The Royal Newfoundland Constabulary is also responsible for providing metropolitan police services to the northeast Avalon Peninsula (St. John's, Mount Pearl, and Conception Bay South); western Newfoundland (Corner Brook); and western Labrador (Churchill Falls, Labrador City, and Wabush).

Churchill Falls: Churchill Falls is a waterfall named after former British Prime Minister, Winston Churchill.  It is 245 ft high, located on the Churchill River (before 1965 the Hamilton River, the falls being named Grand Falls) in Newfoundland and Labrador, Canada.

St. John's International Airport: St. John's International Airport (IATA: YYT, ICAO: CYYT) is in Newfoundland and Labrador, Canada.  It is an international airport located 3 NM northwest of St. John's, Newfoundland and Labrador that serves the St. John's Metro Area and the Avalon Peninsula.  The airport is part of the National Airports System, and is operated by St. John's International Airport Authority Inc.

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.

Nalcor Energy: Nalcor Energy is a provincial energy corporation which is headquartered in St. John's, Newfoundland and Labrador.  A provincial Crown corporation under the Government of Newfoundland and Labrador, Nalcor Energy was created in 2007 to manage the province's energy resources.  There are five lines of business which include Newfoundland and Labrador Hydro, the Churchill Falls Generating Station, The Lower Churchill Project, Oil and Gas and The Bull Arm Fabrication Site.

Churchill Falls (Labrador) Corporation Limited: The Churchill Falls (Labrador) Corporation, also known as CF(L)Co or CFLco is a Canadian electric company.  The company was founded in 1961 and is based in St. John's, Newfoundland.  Churchill Falls (Labrador) Corporation Limited operates as a subsidiary of Newfoundland and Labrador Hydro.

Churchill Falls Airport: 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.

Provincial Airlines: 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 Generating Station: 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%).

Newfoundland School Society: The Newfoundland School Society (N.S.S) was established on June 30, 1823 by a merchant named Samuel Codner.  Codner first came to Newfoundland in 1788 and periodically traveled back to England where he was influenced by the Evangelical Revival occurring there during this time.  He was inspired to help Christians in neglected British colonies by the Premier of England, Lord Liverpool in 1821.  Knowing the dire conditions in Newfoundland, he formed "The Society for Educating the Poor of Newfoundland" which had its first annual meeting at the London Coffee House on July 13, 1824.  It was the ability of the N.S.S. to deal with the difficult conditions in Newfoundland that led to their great success on the Island.  The first N.S.S. school was set up in St. John's in 1823 and within two years, the demand spread rapidly to rural Newfoundland where petitions and applications for schools began pouring out.  By 1825, five schoolmasters had been sent between St. John’s, Quidi Vidi, Harbour Grace, Carbonear, and Petty Harbour.  Within just ten years, 43 N.S.S. schools had been established on the Island, with an enrolment of approximately 6945 children in daily schools and 4714 in Sunday schools.  The N.S.S. began to dissipate in the late 19th century when Newfoundland Legislature established an Education Board and set up Board Schools across the Island, and especially after the Education Act of 1891.  In 1923, what still existed as the N.S.S. merged into a denominational school system known as the Church of England schools.

Supporting paragraphs: Churchill Falls Airport Provincial Airlines
Answer: Provincial Airlines