Question: Sabiha Gökçen International Airport serves as the hub for what airline headquartered in the Kurtköy area of Pendik, Istanbul?
Context: Pegasus Airlines (Turkish: "Pegasus Hava Taşımacılığı A.Ş." )  is a Turkish low-cost airline headquartered in the Kurtköy area of Pendik, Istanbul with bases at several Turkish airports. The Sabiha Gökçen Airport bombing took place on 23 December 2015 in the apron area of Sabiha Gökçen International Airport in İstanbul, Turkey.  The explosion, which occurred at approximately 02:05 local time, wounded two airport cleaners, one of whom later died after being taken to hospital.  Flights from the terminal resumed as normal while Binali Yıldırım, the Minister of Transport, Maritime and Communication, claimed that there had been no security lapses at the airport.  Witnesses initially claimed that they heard three successive blasts, though their cause was unknown and investigators refused to rule out terrorism as a motive.  The "Daily Telegraph" claimed that the blast was most likely caused by a bomb. Tailwind Airlines is a Turkish charter airline based in Istanbul whichs operates flights from its bases at Sabiha Gökçen International Airport and Antalya Airport. MyCargo Airlines, legally incorporated and formerly named "ACT Airlines" (Turkish: "ACT Havayollari"), is a Turkish cargo airline based in the Ekinci Residence Building Level 7, in Kurtköy, Istanbul, Turkey.  It operates international scheduled and charter air cargo services, as well as wet and dry lease services.  Its main base is Sabiha Gökçen International Airport, Istanbul.  The airline's European hub is based at Liege Airport in Belgium. Sabiha Gökçen International Airport (IATA: SAW, ICAO: LTFJ) is one of the two international airports serving Istanbul, the largest city in Turkey, the other being Atatürk Airport.  Located 35 km southeast of central Istanbul, Sabiha Gökçen is on the Asian side of the bi-continental city and serves as the hub for Pegasus Airlines as well as a base for Turkish Airlines and Borajet.  The facility is named after Sabiha Gökçen, the first female combat pilot in Turkey and adoptive daughter of Mustafa Kemal Atatürk, the founding President of the Republic of Turkey. Geyve is a town in Sakarya Province in the Marmara region of Turkey.  The closest international airport is Istanbul Sabiha Gökçen International Airport, 139 km from Geyve.  It is the third largest town of Sakarya Province in terms of area.  Geyve is located at the foot of Geyve Gorge, which is set between two mountain ranges and lies along the Sakarya River.  Geyve region has an impressive green landscape and productive nature.  Geyve is relatively close to many important cities in Turkey; 179 km to Istanbul, 30 km to Adapazarı, 75 km to Izmit, 139 km to Bursa, 156 km to Eskişehir, 167 km to Bolu according to Google Maps. Turkish Technic (Turkish Airlines Maintenance Center), is the maintenance, repair and overhaul (MRO) center of Turkish Airlines.  Third party airlines are also served.  Turkish Technic is headquartered at Istanbul Ataturk International Airport (IST) on the European side of Istanbul.  However, a new complex built at Sabiha Gökçen International Airport (SAW) on the Asian (Anatolia) side of Istanbul, formerly named Turkish Habom (Habom being short for "aviation MRO"), is poised to become the main center of operations. Istanbul Atatürk Airport (IATA: IST, ICAO: LTBA) (Turkish: "İstanbul Atatürk Havalimanı" ) is the main international airport serving Istanbul, and the biggest airport in Turkey by total number of passengers, destinations served and aircraft movements.  Opened in 1924 in Yeşilköy, on the European side of the city, it is located 24 km west of the city centre and serves as the main hub for Turkish Airlines.  The city's other, smaller, international airport is Sabiha Gökçen International Airport.  As of February 2017, 273 destinations are served from Istanbul-Atatürk, making it the airport with the second-most destinations worldwide after Frankfurt Airport. Ankara Esenboğa Airport (IATA: ESB, ICAO: LTAC) (Turkish: "Ankara Esenboğa Havalimanı" ), is the international airport of Ankara, the capital city of Turkey.  It has been operating since 1955.  In 2014, the airport has served more than 11 million passengers in total, 4.9 million of which were domestic passengers.  It ranked 4th in terms of total passenger traffic (after Ataturk Airport, Antalya Airport and Sabiha Gökçen Airport), 3rd in terms of domestic passenger traffic (after Ataturk Airport and Sabiha Gökçen Airport) among airports in Turkey. 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.
Answer: Pegasus Airlines