Question: What is the second airport that serves the setting of shadow of the dragon?

full_context: Document 1: Nguyễn Lộc: In his younger years he trained in traditional Vietnamese martial arts. In 1938, grandmaster Nguyễn introduced his style "Vovinam" to the public. After a demonstration in 1939 in Hanoi, Vovinam quickly spread across the country, and internationally to the Vietnamese diaspora via France. However the French banned the movement in 1942.
Document 2: David Wayne Hooks Memorial Airport: On June 27, 2007, The Texas State Legislature approved Tomball's request to annex Hooks Airport even though the airport does not border the Tomball city limits. Since the airport is in the city of Houston's extraterritorial jurisdiction, the city of Tomball must get permission from Houston to annex the airport. As of summer of 2010, the annex still has not been finalized.
Document 3: Houston: The second-largest commercial airport is William P. Hobby Airport (named Houston International Airport until 1967) which operates primarily short- to medium-haul domestic flights. However, in 2015 Southwest Airlines launched service from a new international terminal at Hobby airport to several destinations in Mexico, Central America, and the Caribbean. These were the first international flights flown from Hobby since 1969. Houston's aviation history is showcased in the 1940 Air Terminal Museum located in the old terminal building on the west side of the airport. Hobby Airport has been recognized with two awards for being one of the top five performing airports in the world and for customer service by Airports Council International.
Document 4: Mexico City: Mexico City is served by Mexico City International Airport (IATA Airport Code: MEX). This airport is Latin America's second busiest and one of the largests in traffic, with daily flights to United States and Canada, mainland Mexico, Central America and the Caribbean, South America, Europe and Asia. Aeroméxico (Skyteam) is based at this airport, and provide codeshare agreements with non-Mexican airlines that span the entire globe. In 2014, the airport handled well over 34 million passengers, just over 2 million more than the year before. This traffic exceeds the current capacity of the airport, which has historically centralized the majority of air traffic in the country. An alternate option is Lic. Adolfo López Mateos International Airport (IATA Airport Code: TLC) in nearby Toluca, State of Mexico, although due to several airlines' decisions to terminate service to TLC, the airport has seen a passenger drop to just over 700,000 passengers in 2014 from over 2.1 million passengers just four years prior.
Document 5: Shadow of the Dragon: Shadow of the Dragon is a 1993 book written by Sherry Garland. It chronicles Danny Vo and Nguyen Sang Le, two ethnic Vietnamese living in Houston; Danny is Americanized while Sang Le has difficulty adjusting to American culture and society.
Document 6: Miami: Miami International Airport serves as the primary international airport of the Greater Miami Area. One of the busiest international airports in the world, Miami International Airport caters to over 35 million passengers a year. The airport is a major hub and the single largest international gateway for American Airlines. Miami International is the busiest airport in Florida, and is the United States' second-largest international port of entry for foreign air passengers behind New York's John F. Kennedy International Airport, and is the seventh-largest such gateway in the world. The airport's extensive international route network includes non-stop flights to over seventy international cities in North and South America, Europe, Asia, and the Middle East.
Document 7: Bamboo Among the Oaks: Edited by Mai Neng Moua, "Bamboo Among the Oaks" features the work of 23 Hmong writers from across the country. Some wrote using pseudonyms or pen-names due to the sensitivity of their subjects and concerns that the community might not distinguish between the narrator's voice and the author.
Document 8: Đào Duy Từ: After arriving in southern Vietnam, Đào Duy Từ attempted to meet Lord Nguyễn Phúc Nguyên but failed. After that, Từ became a worker for a landlord named Chúc Trịnh Long in Tùng Châu (present day Bồng Sơn, Bình Định Province) in order to get close to Trần Đức Hòa, a neighbor of Chúc Trịnh Long and a mandarin of Lord Nguyễn Phúc Nguyên. This attempt was a success: after leaning of Từ's ability, Trần Đức Hòa gave his daughter's hand to Đào Duy Từ and hired him as the family tutor . At this time, Từ composed a famous Vietnamese language poem, "Ngọa Long Cương Vãng" (Singing of a Lying Dragon), in which he compared himself to famous Chinese military strategist Zhuge Liang.
Document 9: On Gold Mountain: On Gold Mountain: The One-Hundred-Year Odyssey of My Chinese-American Family describes 100 years of author Lisa See’s family history, providing a complex portrait of her family’s hard work, suffering, failures and successes as they moved from China to the United States. Speaking of the Chinese side of her family, See has said: "Things were so fractured and wild at home ... But the weekends with my grandparents became the real center for me ... It was the side of the family I identified more with. It was fun, romantic, solid". The book has inspired both an opera, and a museum exhibition. It also provides helpful context for See's novel, "Shanghai Girls". The time frame for "Shanghai Girls" is 1937-1957, corresponding to Parts IV and V of "On Gold Mountain."
Document 10: Dragonwings: "Dragonwings" features the Chinese American experience in the United States, specifically San Francisco, shortly after the turn of the twentieth century.
Document 11: Tan Son Nhat International Airport: Tân Sơn Nhất International Airport (IATA: SGN, ICAO: VVTS) (Vietnamese: Sân bay quốc tế Tân Sơn Nhất, Vietnamese: Cảng hàng không quốc tế Tân Sơn Nhất) is the busiest airport in Vietnam with 32.5 million passengers in 2016, serving Ho Chi Minh City as well as the rest of southeastern Vietnam. As of January 2017, it had a total capacity of only 25 million passengers, which has caused constant congestion and sparked debate for expanding or building a new airport. The airport's IATA code, SGN, is derived from the city's former name of Saigon.
Document 12: London: London is a major international air transport hub with the busiest city airspace in the world. Eight airports use the word London in their name, but most traffic passes through six of these. London Heathrow Airport, in Hillingdon, West London, is the busiest airport in the world for international traffic, and is the major hub of the nation's flag carrier, British Airways. In March 2008 its fifth terminal was opened. There were plans for a third runway and a sixth terminal; however, these were cancelled by the Coalition Government on 12 May 2010.
Document 13: Houston: The primary city airport is George Bush Intercontinental Airport (IAH), the tenth-busiest in the United States for total passengers, and twenty eighth-busiest worldwide. Bush Intercontinental currently ranks fourth in the United States for non-stop domestic and international service with 182 destinations. In 2006, the United States Department of Transportation named IAH the fastest-growing of the top ten airports in the United States. The Houston Air Route Traffic Control Center stands on the George Bush Intercontinental Airport grounds.
Document 14: Tea with the Black Dragon: Martha Macnamara, is called west to San Francisco by a message from her daughter Elizabeth, a computer programmer. When she arrives, however, Elizabeth has disappeared. Mayland Long, an Asian gentleman who is skilled in both human and computer languages — and who may be a transformed 2,000-year-old Chinese dragon —aids Martha in her search for her daughter. As they search for clues to Elizabeth's disappearance, they discover hints that Elizabeth is involved in a dangerous crime.
Document 15: Philadelphia: Two airports serve Philadelphia: the Philadelphia International Airport (PHL), straddling the southern boundary of the city, and the Northeast Philadelphia Airport (PNE), a general aviation reliever airport in Northeast Philadelphia. Philadelphia International Airport provides scheduled domestic and international air service, while Northeast Philadelphia Airport serves general and corporate aviation. In 2013, Philadelphia International Airport was the 15th busiest airport in the world measured by traffic movements (i.e. takeoffs and landings). It is also the second largest hub and primary international hub for American Airlines.
ground_truth: William P. Hobby Airport
sub_queries: what is the setting of shadow of the dragon Answer: Houston
What is the second airport that serves Houston ? Answer: William P. Hobby Airport