Question: Virgin Australia serves what city whose airport is located in the suburb of Mascot?

Context paragraphs:
Virgin Australia Regional Airlines: Virgin Australia Regional Airlines (formerly Skywest) is an Australian regional airline based in Perth; servicing key towns in the state of Western Australia as well as interstate destinations Darwin, Melbourne, Brisbane, Canberra and Sydney.  It also serves regional destinations in New South Wales and Queensland and operates charter flights to Bali.  In April 2013 Skywest was purchased by Virgin Australia Holdings as its new regional offshoot, and renamed Virgin Australia Regional Airlines.

Polynesian Airlines: Polynesian Airlines is an airline based in Samoa.  Its headquarters are located in the Samoa National Provident Fund (SNPF) Building on beach road in the capital, Apia.  Formerly a Pan-Pacific carrier, the establishment of Virgin Samoa (a partnership between Virgin Australia Holdings, the Government of Samoa and Grey Investment Group), Polynesian Airlines has restricted itself to shorter flights to neighbouring islands as part of the agreement.  Polynesian's main operating base is Faleolo International Airport, Apia.  When Virgin Samoa ceases in 2017, it is proposed that Polynesian Airlines resume long distance flights.

Auckland Airport: Auckland Airport (IATA: AKL, ICAO: NZAA) is the largest and busiest airport in New Zealand, with 16,487,648 (9,005,612 international and 7,482,036 domestic) passengers in the year ended December 2015.  The airport is located near Mangere, a residential suburb and Airport Oaks, a service hub suburb 21 km south of Auckland city centre.  It is both a domestic and international hub for Air New Zealand, and as the New Zealand hubs of Virgin Australia and Jetstar Airways.

Great Barrier Reef Airport: Great Barrier Reef Airport or Hamilton Island Airport (IATA: HTI, ICAO: YBHM) is the primary airport of the Whitsunday Islands Group, and the airport of Hamilton Island.  The airport is settled on mostly reclaimed land and due the island's tourism status, is occupied mostly and favoured by Australia's leading low-cost airlines (Jetstar Airways and Virgin Australia) and Qantas.  Hamilton Island Airport handles direct flights from Sydney, Melbourne, Brisbane and Cairns and is also the airport launch pad for scenic flights to the Great Barrier Reef and Whitehaven Beach.  Private flights and charters also fly into Great Barrier Reef Airport, along with locally operated helicopters, light planes and seaplanes.

Whitsunday Coast Airport: Proserpine Airport (IATA: PPP, ICAO: YBPN) (also known as Whitsunday Coast Airport) is located 14 kilometres south of Proserpine in Queensland, Australia.  The airport is the main gateway for travelers to and from the Whitsunday Islands with Jetstar Airways and Virgin Australia operating flights to BrisbaneTIGER to Sydney.

Coffs Harbour Airport: Coffs Harbour Airport: (IATA: CFS, ICAO: YCFS) (formerly ICAO code of YSCH until November 2007) is the only airport located in and serving the regional centre of Coffs Harbour, Australia.  The airport is located near Boambee, south of Coffs Harbour.  Coffs Harbour Regional Airport is one of the largest and busiest regional airports in New South Wales, handling numerous types of aircraft.  The airport is currently serviced by four airlines QantasLink, Virgin Australia,

Virgin Australia: Virgin Australia Airlines Pty Ltd, formerly Virgin Blue Airlines, is Australia's second-largest airline after Qantas and it is the largest airline by fleet size to use the 'Virgin' brand.  Now based in Bowen Hills, Brisbane, the airline was co-founded by British businessman Richard Branson, the founder of parent Virgin Group and former Virgin Blue CEO Brett Godfrey.  It was established in November 1999 with two aircraft operating on a single route, and suddenly found itself catapulted to the position of Australia's second airline after the collapse of Ansett Australia in September 2001.  The airline has grown to directly serve 29 cities in Australia from hubs in Brisbane, Melbourne and Sydney, using a fleet of narrow-body Boeing and Embraer jets; and Airbus and Boeing widebody jets.

Virgin Australia Holdings: Virgin Australia Holdings Limited is the holding company that owns and operates Virgin Australia and Tigerair Australia.  It previously operated Pacific Blue Airlines and joint-venture airline Polynesian Blue which were absorbed into Virgin Australia in December 2011.  Its head office is located in Bowen Hills, Brisbane.

Sydney Airport: Sydney (Kingsford Smith) Airport (colloquially Mascot Airport, Kingsford Smith Airport, or Sydney Airport; IATA: SYD, ICAO: YSSY ; ) is an international airport in Sydney, Australia located 8 km (5 mi) south of Sydney city centre, in the suburb of Mascot.  It is the primary airport serving Sydney, and is a primary hub for Qantas, as well as a secondary hub for Virgin Australia and Jetstar Airways.  Situated next to Botany Bay, the airport has three runways, colloquially known as the east–west, north–south and third runways.

Tigerair Australia: Tiger Airways Australia Pty Ltd, operating as Tigerair Australia, is an Australian low-cost airline.  It commenced services in the Australian domestic airline market on 23 November 2007 as Tiger Airways Australia.  It is a fully owned subsidiary of Virgin Australia Holdings.  The airline is based in Melbourne, Victoria, with its main base at Melbourne Airport.  The Civil Aviation Safety Authority of Australia (CASA) grounded the airline in 2011; as a result operating bases at Adelaide and Avalon were shut down and it initially only operated out of its Melbourne base after returning to the air.  On 7 March 2012, Tigerair announced the reopening of a second base at Sydney Airport.

Supporting paragraphs: Virgin Australia Sydney Airport
Answer: Sydney