Question: What air line has a main hub in Zurich Airport and was known as Crossair?

full_context: Document 1: South African Airways: South African Airways (SAA) is the flag carrier of South Africa. Its headquarters are in Airways Park on the grounds of OR Tambo International Airport in Kempton Park, Ekurhuleni, Gauteng. The airline flies to 56 destinations worldwide, in partnership with SA Express, SA Airlink and its low-cost carrier, Mango, within South Africa and across the continent, and eight intercontinental routes from its Johannesburg hub at OR Tambo International Airport, using a fleet of 54 aircraft. Musa Zwane has been acting CEO since November 2015.
Document 2: Swiss International Air Lines: Swiss International Air Lines AG (short Swiss, stylized as SWISS) is the national airline of Switzerland operating scheduled services in Europe and to North America, South America, Africa and Asia. Its main hub is Zurich Airport, with a focus city operation at Geneva Airport. The airline was formed after the 2001 bankruptcy of Swissair, Switzerland's former flag carrier.
Document 3: AirClub: The AirClub is a 2012 founded airline alliance of seven airlines. It is considered to be the first and only airline alliance of business airlines, in the world. The alliance has a fleet of over 100 aircraft and is headquartered in Geneva, Switzerland.
Document 4: Luxair Flight 9642: Luxair Flight 9642 was a scheduled international passenger flight flying from Berlin Tempelhof Airport, Germany, to Luxembourg Findel Airport, Luxembourg. The flight carried 19 passengers and 3 crew members. The flight was operated by Luxair, the flag carrier (national airline) of Luxembourg. The plane was a Fokker 50 and registered as LX-LGB. Lufthansa had a codeshare on the flight as LH2420. On 6 November 2002, the flight crashed while on final approach to Luxembourg Findel Airport about 6 nautical miles (11 km) short of the runway while trying to land in fog. 20 out of the 22 passengers and crew perished
Document 5: Air Southwest: Air Southwest was a British airline founded by Sutton Harbour Holdings in 2003. Ownership was transferred to Eastern Airways in September 2010 but operations ceased 12 months later. It operated regional scheduled passenger services in the South West of England. Its main base was Plymouth City Airport, with hubs at Newquay Cornwall Airport and Bristol Airport. The airline employed 145 people and was headed by managing director Peter Davies and Deputy chief executive Mike Coombes.
Document 6: Turkish Airlines: Turkish Airlines (Turkish: "Türk Hava Yolları") () is the national flag carrier airline of Turkey, headquartered at the Turkish Airlines General Management Building on the grounds of Atatürk Airport in Yeşilköy, Bakırköy, Istanbul. s of 2017 , it operates scheduled services to 302 destinations in Europe, Asia, Africa, and the Americas, making it the fourth-largest carrier in the world by number of destinations. It serves more destinations non-stop from a single airport than any other airline in Europe. Turkish Airlines flies to 120 countries, more than any other airline. With an operational fleet of fourteen cargo aircraft, the airline's cargo division serves 64 destinations. Istanbul Atatürk Airport is its main base, and there are secondary hubs at Esenboğa International Airport, Sabiha Gökçen International Airport, and Adnan Menderes Airport. Turkish Airlines has been a member of the Star Alliance network since 1 April 2008.
Document 7: PrivatAir: PrivatAir is a Swiss airline operating business jets, headquartered at Geneva Airport in Meyrin. It operates scheduled services for other airlines as well as charter flights for corporations and VIPs.
Document 8: Geneva Airport: Geneva Airport (IATA: GVA, ICAO: LSGG) , formerly and still unofficially known as "Cointrin Airport", is the international airport of Geneva, the second most populous city in Switzerland. It is located 4 km northwest of the city centre. It reached 15 million passengers for the first time in December 2014 and serves as a hub for Swiss International Air Lines, easyJet Switzerland and Etihad Regional. Geneva features a route network of flights mainly to European metropolitan and leisure destinations as well as some long-haul routes to North America, China and the Middle East, amongst them Swiss International Air Lines' only long-haul service (to New York City) outside of Zürich.
Document 9: EasyJet Switzerland: EasyJet Switzerland SA, styled as easyJet, is a Swiss low-cost airline based in Meyrin, Geneva. It operates scheduled flights as an EasyJet franchisee from Geneva Airport and EuroAirport Basel–Mulhouse–Freiburg.
Document 10: Swissôtel: Swissôtel Hotels and Resorts, usually simply known as Swissôtel, is a group of hotels pitched at the higher end of the hotel market. The chain currently includes 37 properties in 17 countries. The corporate offices for Swissôtel are located in the Prioria Business Center on the property of Zurich Airport, Kloten, Switzerland, near Zurich. The company is headed by President Meinhard Huck.
Document 11: International Airlines Group: International Consolidated Airlines Group, S.A., often shortened to IAG, is an Anglo-Spanish multinational airline holding company with its operational headquarters in London, England and its registered office in Madrid, Spain. It was formed in January 2011 after a merger agreement between British Airways and Iberia, the flag carrier airlines of the United Kingdom and Spain respectively. As British Airways was the larger company, those holding shares in British Airways at the time of the merger were given 55% of the shares in the new, merged company. British Airways and Iberia ceased to be independent companies and instead became 100% owned subsidiaries of IAG. It is the sixth-largest airline company in the world, producing €22.567 billion revenue in 2016. The company is listed on the London Stock Exchange and the Madrid Stock Exchange. It is a constituent of the FTSE 100 Index and IBEX 35 Index.
Document 12: Crossair: Crossair Ltd. Co. for Regional European Air Transport (German: Crossair AG für europäischen Regionalluftverkehr ) was a regional airline headquartered on the grounds of EuroAirport Basel-Mulhouse-Freiburg in Saint-Louis, Haut-Rhin, France, near Basel, Switzerland. It became Swiss International Air Lines after taking over most of the assets of Swissair following that airline's bankruptcy in 2002.
Document 13: United Airlines: United Airlines, Inc., commonly referred to as United, is a major U.S. airline headquartered in Chicago, Illinois. It is the world's third-largest airline when measured by revenue, after American Airlines and Delta Air Lines. United operates a large domestic and international route network, with an extensive presence in the Asia-Pacific region. United is a founding member of Star Alliance, the world's largest airline alliance. Regional service is operated by independent carriers under the brand name United Express. Its main competitors are American Airlines, Delta Air Lines, and Southwest Airlines.
Document 14: Air India: Air India is the flag carrier airline of India. It is owned by Air India Limited, a government-owned enterprise, and operates a fleet of Airbus and Boeing aircraft serving 90 domestic and international destinations. The airline has its hub at Indira Gandhi International Airport, New Delhi, alongside several focus cities across India. Air India is the largest international carrier out of India with an 18.6% market share. Over 60 international destinations are served by Air India across four continents. Additionally, the carrier is the third largest domestic airline in India in terms of passengers carried (after IndiGo and Jet Airways) with a market share of 13.5% as of July 2017. The airline became the 27th member of Star Alliance on 11 July 2014.
Document 15: City Airline: City Airline AB was a regional airline based in the Air Cargo Building on the grounds of Göteborg Landvetter Airport in Landvetter, Härryda Municipality, Sweden. It was privately owned and operated a medium-sized European network from its main base at Landvetter. The airline was wholly owned by Investment AB Janus of Gothenburg and employed 110 staff (as of July 2007). On 29 November 2011 the City Airline name was dropped after being acquired by Skyways, and all flights were then operated under the Skyways brand. In May 2012 Skyways and City Airline filed for bankruptcy.
ground_truth: Swiss International Air Lines