Question: What Nevada city is home to the corporate headquarters for the low cost airline that operates out of Bishop International Airport?

<P0-S0> Bishop International Airport (IATA: FNT, ICAO: KFNT, FAA LID: FNT) is a commercial and general aviation airport located in Flint, Michigan. <P0-S1>  It is named after banker and General Motors board member Arthur Giles Bishop (April 12, 1851 – January 22, 1944), who donated 220 acres of his farmland for the airport in 1928. <P0-S2>  The third busiest airport in Michigan, it surpassed competitor MBS International Airport in terms of airline operations in 2002. <P0-S3>  The airport is currently served by several passenger airlines: Allegiant Air, Southwest Airlines and Delta Air Lines operate mainline service out of the airport, as well as affiliates of Delta Connection, United Express and American Eagle. <P0-S4>  In 2007, 1,071,238 passengers used Bishop International Airport; in 2011, 938,914 passengers used the airport. <P0-S5>  It is included in the Federal Aviation Administration (FAA) National Plan of Integrated Airport Systems for 2017–2021, in which it is categorized as a small hub primary commercial service facility. <P0-S6>  Additionally, FedEx Express and a FedEx Feeder affiliate operate cargo services out of the airport. <P0-S7>  Accompanying the airlines is fixed-base operator Av Flight that handles both general aviation and airline operations and the flight school American Wings Aviation. <P0-S8>  Bishop International Airport is in southwestern Flint, and is surrounded by Flint Township to the north, east and west; and Mundy Township to the south. <SEP> <P1-S0>  It is wholly owned by Allegiant Travel Company (NASDAQ: ALGT ), a publicly traded company with 3,700 employees and over $2.6 billion USD market capitalization. <P1-S1>  The corporate headquarters are in Summerlin, Nevada, a suburb of Las Vegas. <P1-S2> Allegiant Air is an American low-cost airline that operates scheduled and charter flights. <SEP> <P2-S0> Philadelphia International Airport (IATA: PHL, ICAO: KPHL, FAA LID: PHL) , often referred to just by its IATA code PHL, is a major airport in Philadelphia, Pennsylvania, United States, and is the largest airport in the Delaware Valley region and in the state. <P2-S1>  The airport is a major international hub for American Airlines and a regional cargo hub for UPS Airlines. <P2-S2>  Philadelphia International Airport is also a focus city for ultra low cost airline Frontier Airlines. <P2-S3>  The airport has service to destinations in the United States, Canada, the Caribbean, Latin America, Europe, and the Middle East. <P2-S4>  Most of the airport property is located in Philadelphia proper. <P2-S5>  The international terminal and the western end of the airfield are located in Tinicum Township, Delaware County. <P2-S6>  PHL covers 2,302 acres (932 ha). <SEP> <P3-S0> Corporate headquarters is the part of a corporate structure that deals with important tasks such as strategic planning, corporate communications, taxes, law, marketing, finance, human resources, and information technology. <P3-S1>  Corporate headquarters takes responsibility for the overall success of the corporation and ensures corporate governance. <P3-S2>  It is sometimes referred to as the head office, which is the location where the executives of a business work and where many of the key business decisions are made. <P3-S3>  Generally, corporate headquarters acts as a core when the business is operating. <P3-S4>  The corporate headquarters includes: the CEO (chief executive officer) as a key person and their support staff such as the CEO office and other CEO related functions; the "corporate policy making" functions: Include all corporate functions necessary to steer the firm by defining and establishing corporate policies; the corporate services: Activities that combine or consolidate certain enterprise-wide needed support services, provided based on specialized knowledge, best practices, and technology to serve internal (and sometimes external) customers and business partners; the interface: Reporting line and bi-directional link between corporate headquarters and business units. <P3-S5>  Most other divisions and branches report to the corporate headquarters and staff may visit there periodically for training or other instructions" (Kimberly: 2014: 22). <P3-S6>  The corporate services are often relocated into a separate legal entity called shared services center. <P3-S7>  Research shows that the city in which a company is headquartered has a significant influence on the company's activities, including its business practices and its corporate philanthropic giving.