Question: The main international airport of Holland also serves as one of the main bases for which airline?

Context paragraphs:
Amsterdam Airport Schiphol: Amsterdam Airport Schiphol (Dutch: "Luchthaven Schiphol" , ] ) (IATA: AMS, ICAO: EHAM) is the main international airport of both Holland

Bonaire Express: Bonaire Express was an airline based in Bonaire, Netherlands.  It was the regional airline for the Netherlands Antilles and also acted as a feeder for DutchCaribbeanExel while under the BonairExel brand and part of the ExelAviation Group and later for KLM for its long-haul services to Europe.  Its main bases were Flamingo International Airport (BON), Bonaire, with focus cities in Queen Beatrix International Airport (AUA), Aruba and Hato Airport (CUR), Curaçao.

Aerogem Aviation: Aerogem Aviation Ltd (sometimes written AeroGEM Aviation) is a Ghanaian cargo airline based in Ghana.  Its head office is in the 1 Gemini Airlines Building in Old Cargo Village, Kotoka International Airport, Accra.  It operates worldwide non-scheduled cargo flights.  Its main bases are Kotoka International Airport, Accra and Sharjah International Airport, United Arab Emirates.

DAS Air Cargo: DAS Air Cargo was a Ugandan cargo airline based at Entebbe as Dairoo Air Services.  It operated all-cargo services between Europe and 20 cities throughout Africa, the Middle East and the Far East.  Entebbe was a major hub for business in east and southern Africa and also for flights from Bangkok which stage through Dubai.  Its main bases were London Gatwick Airport and Entebbe International Airport, with hubs at Jomo Kenyatta International Airport, Nairobi, Dubai International Airport and Murtala Mohammed International Airport, Lagos.  The European office was at Crawley, England

Zvartnots International Airport: Zvartnots International Airport (Armenian: Զվարթնոց միջազգային օդանավակայան , "Zvart'nots' mijazgayin odanavakayan " , ] ) (IATA: EVN, ICAO: UDYZ) is located near Zvartnots, 12 km west of Yerevan, the capital city of Armenia.  It acts as the main international airport of Armenia and is Yerevan's main international transport hub.  It is the busiest airport in the nation and the third-busiest of the Caucasus after Heydar Aliyev International Airport in Baku and Tbilisi International Airport in Tbilisi.

Badr Airlines: Badr Airlines, formerly Sarit Airlines (from 1997 to 2004), is an airline based in Khartoum, Sudan, operating cargo and passenger air services for humanitarian aid missions,and chartered VIP flights.  Its main bases are Khartoum International Airport and Sharjah International Airport.  The airline has an international office at Sharjah Free Zone (SAIF-Zone).  Its European office is being established at Cologne Bonn Airport in Germany.  Badr Airlines provides through its partner, African Logistic Support Service (ALS), a wide range of logistical support functions throughout Sudan.

Donbassaero: Donbassaero (Ukrainian: Донбасаеро ) was an airline with its head office on the property of Donetsk International Airport in Donetsk, Ukraine.  It operated domestic and international scheduled services.  Its main bases were Donetsk International Airport and Boryspil International Airport in Kiev.  The main shareholder of the company was PrivatBank, controlled by Ihor Kolomoyskyi.

Nouvelair: Nouvelair Limited Company (French: "Nouvelair Société Anonyme" , Tunisian Arabic: الطيران الجديد تونس‎ ), trading as Nouvelair Tunisie, or simply Nouvelair, is a Tunisian airline with its registered office in Tunis, while its head office in the Dhkila Tourist Zone in Monastir, near the Hôtel Sahara Beach.  The airline operates tourist charters from European cities to Tunisian holiday resorts.  Its main bases are Monastir International Airport, Tunis–Carthage International Airport and Djerba-Zarzis Airport.

All Nippon Airways: All Nippon Airways Co., Ltd. (全日本空輸株式会社 , Zen Nippon Kūyu Kabushiki gaisha ) , also known as Zennikkū (全日空 ) or ANA, is the largest airline in Japan.  Its headquarters are located at Shiodome City Center in the Shiodome area of Minato, Tokyo, Japan.  It operates services to both domestic and international destinations and had more than 20,000 employees as of March 2016.  In May 2010, ANA's total passenger traffic was up year-on-year by 7.8%, and its international services grew by 22% to 2.07 million passengers in the first five months of 2010.  ANA's main international hubs are at Narita International Airport outside Tokyo and Kansai International Airport outside Osaka.  Its main domestic hubs are at Tokyo International Airport (Haneda), Osaka International Airport (Itami), Chūbu Centrair International Airport (near Nagoya), and New Chitose Airport (near Sapporo).

CHC Airways: CHC Airways is an airline based in Hoofddorp, Netherlands.  It operates a fleet of six aircraft and helicopters on behalf of leading airlines and international oil companies.  Its main bases are Amsterdam Airport Schiphol and Den Helder Airport, with hubs at Brussels Airport and Rotterdam The Hague Airport.

Supporting paragraphs: CHC Airways Amsterdam Airport Schiphol
Answer: CHC Airways