Question: What is the name of the brand of commuter and regional flights based out of Dublin Airport, the 15th busiest airport in Europe?

full_context: Document 1: Aer Lingus Regional: Aer Lingus Regional is an Aer Lingus brand used for commuter and regional flights operated by Irish airline Stobart Air on behalf of Aer Lingus. Aer Lingus Regional operates scheduled passenger services primarily from Ireland to the UK, France and the Channel Islands. Its bases are located at Cork and Dublin airports.
Document 2: Belfast International Airport: Belfast International Airport (IATA: BFS, ICAO: EGAA) is an airport 11.5 NM northwest of Belfast in Northern Ireland. Formerly known as Aldergrove Airport, after the nearby village of Aldergrove, Belfast International is Northern Ireland's busiest airport and the second busiest airport on the island of Ireland, second only to Dublin Airport. In 2016, over 5.1 million passengers travelled through the airport, marking a 17% increase compared with 2015.
Document 3: AB Airlines: AB Airlines was an airline with its head office in the Enterprise House on the property of London Stansted Airport in Uttlesford, Essex. AB was one of the first 'low cost airlines' in England, preceding others such as EasyJet, Ryanair, and Go Fly. It was created in 1993 by former Brymon Airways executives. AB Airlines was formerly known as Air Bristol. Initially the airline marketed itself as Air Belfast, reflecting its then principal route between Belfast International Airport and London Stansted. Aircraft and crew were based at Belfast International Airport, London Stansted Airport and Bristol Filton Airport. A base was then opened in 1994 at Shannon Airport to operate flights to London Gatwick Airport. This operation was marketed as AB Shannon.
Document 4: Dublin Airport: Dublin Airport, (Irish: Aerfort Bhaile Átha Cliath ) (IATA: DUB, ICAO: EIDW) , is an international airport serving Dublin, the capital city of Ireland. It is operated by DAA (formerly Dublin Airport Authority). The airport is located 5.4 nmi north of Dublin in Collinstown, Fingal. In 2016, 27.9 million passengers passed through the airport, making it the airport's busiest year on record. It is the 15th busiest airport in Europe, and is also the busiest of the state's airports by total passenger traffic. It has the greatest traffic levels on the island of Ireland, followed by Belfast International Airport, County Antrim.
Document 5: Stobart Air: Stobart Air, legally incorporated as "Stobart Air Unlimited Company" and formerly named Comhfhobairt (Gaillimh) and trading under the business name Aer Arann, is an Irish regional airline headquartered in Dublin. It operates scheduled services under the brands Aer Lingus Regional and Flybe on behalf of their respective owners. Stobart Air has operating bases at Cork and Dublin for Aer Lingus Regional and at London-Southend and Isle of Man for Flybe.
Document 6: Heathrow Airport: Heathrow Airport (also known as London Heathrow) (IATA: LHR, ICAO: EGLL) is a major international airport in London, United Kingdom. Heathrow is the second busiest airport in the world by international passenger traffic (surpassed by Dubai International in 2014), as well as the busiest airport in Europe by passenger traffic, and the seventh busiest airport in the world by total passenger traffic. In 2016, it handled a record 75.7 million passengers, a 1.0% increase from 2015.
Document 7: CityJet: CityJet is an Irish regional airline with headquarters in Swords, County Dublin. It operates its own scheduled services out of London City Airport and to a lesser extent Dublin Airport, where it has maintenance facilities. The airline also operates wet-lease services on behalf of Air France (until October 2017), Scandinavian Airlines and Brussels Airlines. Air France sold CityJet to "Intro Aviation" in May 2014. In March 2016 the airline was bought by founder Pat Byrne and other investors.
Document 8: Airlinair: Société Airlinair is a French regional airline based in Rungis, France, operating scheduled regional flights (some of which are on behalf of Air France), and aircraft lease services. The airline has set up bases at Paris-Orly Airport and Lyon-Saint Exupéry Airport. As an Air France regional partner, it also offers flights from Paris-Charles de Gaulle Airport
Document 9: Flybe: Flybe (pronounced ) is the largest independent regional airline in Europe, based in Exeter, operating more UK domestic flights than any other airline. It flies 7 million passengers a year on 149 routes, from 62 destinations in 9 countries, connecting to long-haul hubs in Manchester, Birmingham, Paris, Dublin and Amsterdam. It is a member of the European Regions Airline Association. Flybe's parent company Flybe Group PLC (formerly known as Walker Aviation Limited) is listed on the London Stock Exchange.
Document 10: Ryanair: Ryanair Ltd. (/raɪə'ner/) is an Irish low-cost airline founded in 1984, headquartered in Swords, Dublin, Ireland, with its primary operational bases at Dublin and London Stansted airports. In 2016, Ryanair was the largest European airline by scheduled passengers flown, and carried more international passengers than any other airline. (, , NASDAQ: RYAAY )
Document 11: Dubai International Airport: Dubai International Airport (IATA: DXB, ICAO: OMDB) (Arabic: مطار دبي الدولي‎ ‎ ) is the primary international airport serving Dubai, United Arab Emirates and is the world's busiest airport by international passenger traffic. It is also the 3rd busiest airport in the world by passenger traffic, the 6th busiest cargo airport in world, the busiest airport for Airbus A380 and Boeing 777 movements, and the busiest airport in the world operating with only two runways. In 2016, DXB handled 83.6 million passengers, 2.59 million tonnes of cargo and registered 418,220 aircraft movements.
Document 12: Dallas/Fort Worth International Airport: Dallas/Fort Worth International Airport (IATA: DFW, ICAO: KDFW, FAA LID: DFW) is the primary international airport serving the Dallas–Fort Worth metroplex area in the U.S. state of Texas. It is the largest hub for American Airlines, which is headquartered near the airport. 2016 was a record year for DFW, as the airport served 65,670,697 passengers.
Document 13: Air Nostrum: Air Nostrum, Líneas Aéreas del Mediterráneo, S.A., also known as Iberia Regional, is a regional airline based in Valencia, Spain. Air Nostrum is an independent carrier which operates as a franchisee of Iberia Airlines and Binter Canarias. Iberia Regional franchise is a regional partner of Iberia and an affiliate member of the Oneworld airline alliance. Air Nostrum operates 91 domestic and international routes to 51 destinations, and charter flights. Its main base is Valencia Airport, with hubs at Barcelona Airport and Madrid-Barajas Airport.
Document 14: Aer Arann: Aer Arann (styled as Aer Arann Regional) was a regional airline based in Dublin, Ireland. The airline operated scheduled services on behalf of Aer Lingus Regional. The airline had three bases in Cork, Dublin and Shannon which operated under the Aer Lingus Regional brand.
Document 15: Dublin Airport: Dublin Airport, (Irish: Aerfort Bhaile Átha Cliath ) (IATA: DUB, ICAO: EIDW) , is an international airport serving Dublin, the capital city of Ireland. It is operated by DAA (formerly Dublin Airport Authority). The airport is located 5.4 nmi north of Dublin in Collinstown, Fingal. In 2016, 27.9 million passengers passed through the airport, making it the airport's busiest year on record. It is the 15th busiest airport in Europe, and is also the busiest of the state's airports by total passenger traffic. It has the greatest traffic levels on the island of Ireland, followed by Belfast International Airport, County Antrim.
ground_truth: Aer Lingus Regional