Question: Which airline has a base at Chengdu Shuangliu International Airport and Kunming Changshui International Airport?
Context: China Eastern Airlines Corporation Limited (, colloquially known as 东航/東航) is an airline headquartered in the China Eastern Airlines Building, on the grounds of Shanghai Hongqiao International Airport in Changning District, Shanghai, China.  It is a major Chinese airline operating international, domestic and regional routes.  Its main hubs are at Shanghai Pudong International Airport and Shanghai Hongqiao International Airport, with secondary hubs at Beijing Capital International Airport, Kunming Changshui International Airport and Xi'an Xianyang International Airport. The Shuangliu Airport Railway Station or Shuangliujichang Railway Station () is a railway station located in Shuangliu County on the Chengdu–Mianyang–Leshan Intercity Railway, which served as Airport rail link system for the Chengdu Shuangliu International Airport. Shuangliu District () is under the administration of Chengdu, the capital of Sichuan province, China.  Located approximately 19 kilometers away from downtown Chengdu, the district covers 1068 square kilometers and has a population of approximately 920,000.  It is the home of Chengdu Shuangliu International Airport, the fifth busiest airport in the China.  Shuangliu County is rapidly being urbanized by the growth of Chengdu and the airport's recent expansion.  The county is bordered by the prefecture-level cities of Ziyang to the southeast and Meishan to the south. Kunming Changshui International Airport (IATA: KMG, ICAO: ZPPP) is the primary airport serving Kunming, the capital of Yunnan Province, China.  The airport is located 24.5 km northeast of the city center in a graded mountainous area about 2100 m above sea level.  The airport opened at 08:00 (UTC+8) on June 28, 2012, replacing the old Kunming Wujiaba International Airport, which will be demolished.  As a gateway to Southeast and South Asia, Changshui Airport is a hub for China Eastern Airlines, Kunming Airlines, Lucky Air, Sichuan Airlines and Ruili Airlines. Mae Fah Luang - Chiang Rai International Airport (Thai: ท่าอากาศยานแม่ฟ้าหลวง เชียงราย ) (old name: Chiang Rai International Airport (Thai: ท่าอากาศยานเชียงราย)) (IATA: CEI, ICAO: VTCT) is located in the city of Chiang Rai in northern Thailand.  The airport is about 8 km from the city center.  Since 1998 it has been managed by the Airports of Thailand Public Company Limited (AOT).  In 2013 the airport handled over 1,000,000 passengers and 7,000 passenger flights.  The airport has international flight facilities and serves 3 international routes to Hong Kong International Airport , Kunming Changshui International Airport and Haikou Meilan International airport.  In 2014, Airports of Thailand said that they would expand Chiang Rai airport.The plans include to build an additional taxiway, more shops and maybe extend the runaway.This should be completed in 2030. Kunming Wujiaba International Airport was the main airport serving Kunming, the capital of Yunnan Province, China.  It is located 4 km south-east of metropolitan Kunming.  Originally built in 1923, the airport had been renovated numerous times into a modern facility before closing on 28 June 2012.  It was a major hub for China Eastern Airlines, Kunming Airlines, and Lucky Air.  The airport was replaced by the new Kunming Changshui International Airport.  Wujiaba Airport will be demolished and the land will be redeveloped. Sichuan Airlines Co., Ltd. () is a regional airline headquartered on the grounds of Chengdu Shuangliu International Airport in Chengdu, Sichuan in China, operating mainly scheduled domestic flights out of Chengdu Shuangliu Airport and Chongqing Jiangbei International Airport. Chengdu Tianfu International Airport () is an under-construction airport serving Chengdu, the capital of China's Sichuan province and a major air hub.  The site of the airport has been chosen at Lujia, Jianyang, 51 km south-east of the center of Chengdu.  It is also named after the Tianfu New Area, a development zone for Chengdu in which the airport is located (Tianfu translating as "Land of Abundance" in English).  Construction began May 2016, complete in 2019 and due to be opened in 2020.  This airport will operate as a second airport for Chengdu with Chengdu Shuangliu International Airport continuing to operate. Chengdu Shuangliu International Airport (IATA: CTU, ICAO: ZUUU) is the major international airport serving Chengdu, the capital of China's Sichuan Province.  Located about 16 km southwest of downtown Chengdu to the north of Shuangliu District, Shuangliu airport is an important aviation hub to Western China.  Shuangliu Airport is one of the two core hubs for Air China, together with Beijing, as well as the main hub and headquarters for Sichuan Airlines and Chengdu Airlines.  China Eastern Airlines, Shenzhen Airlines, Lucky Air and Tibet Airlines also have bases at Shuangliu Airport. Lucky Air () is an airline based in the "Xiángpéng Hángkōng Dàshà" (S: 祥鹏航空大厦, T: 祥鵬航空大廈) in Kunming, Yunnan, China.  It operates scheduled services from Dali to Kunming and Xishuangbanna, and plans to expand to other areas of China.  Its main base is Kunming Changshui International Airport.  The airline is one of the four founding members of the U-FLY Alliance.
Answer: Lucky Air