Question: What is the name of the interior designer that worked on the hotel built on the site of the demolished Dunes hotel and casino? 

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Roger Thomas (designer): Roger Thomas (born 1951) is an American interior designer best known for his work on resort hotels and casinos in Las Vegas, including the Bellagio, Wynn Las Vegas and Encore Las Vegas.  His work also extends to other areas of the world, including Wynn Macau and Encore Macau in China.  He is the Executive Vice President of Design for Wynn Design & Development, and principal of the Roger Thomas Collection.  Thomas has been named five times to the "Architectural Digest" AD100 list of the world's preeminent architects and designers, and was inducted into the "Interior Design Magazine" Hall of Fame in 2015.

Bellagio (resort): Bellagio is a resort, luxury hotel and casino on the Las Vegas Strip in Paradise, Nevada.  It is owned and operated by MGM Resorts International and was built on the site of the demolished Dunes hotel and casino.  Inspired by the Lake Como town of Bellagio in Italy, Bellagio is famed for its elegance.  One of its most notable features is an 8 acre lake between the building and the Strip, which houses the Fountains of Bellagio, a large dancing water fountain synchronized to music.

Jackson Hotel (Paola, Kansas): The Jackson Hotel is a historic hotel building located at 139 W. Peoria St. in Paola, Kansas.  The hotel was built in 1921 on a site which had contained a hotel since 1863; the Jackson Hotel was the third hotel built at the site.  Architect George P. Washburn designed the hotel in the Commercial style.  The hotel features a full-length porch on the ground floor and a front entry with a transom and sidelights, a common element of group residences of the era intended to make the building resemble a home.  From 1937 to 1969, Paola business directories listed the Jackson Hotel as one of only two in the city, along with the Commercial Hotel; it became the only hotel in 1969 when the Commercial Hotel was demolished.  By 1992, the hotel building had been vacated; it remained empty until a 2006 redevelopment effort.

Sahara Boardwalk Hotel and Casino: The Sahara Boardwalk Hotel and Casino was a proposed hotel and casino that was to be built in the late 1970s and early 1980s in Atlantic City, New Jersey.  The site of the proposed project was located at Albany Avenue and the Boardwalk, between the original Golden Nugget Hotel and Casino and the proposed Dunes Hotel and Casino (Atlantic City) project.  However, because of financial and legal difficulties, construction of the hotel/casino was never completed and the site was sold in 1982.

Dunes Hotel and Casino (Atlantic City): The Dunes Hotel and Casino (Atlantic City) was a proposed hotel and casino that was to be built in Atlantic City, New Jersey in the late 1970s.  It was initially proposed to consist of 504 hotel rooms and a 34,500 square foot casino located at Albany Avenue on the Boardwalk.  It was to be the southern most hotel/casino on the Boardwalk, adjacent to the Golden Nugget Hotel & Casino.  Due to financial and legal difficulties, the hotel was never completed and a casino license was never issued.

Royal Palm Hotel (Miami): The Royal Palm Hotel was a large resort hotel built by railroad magnate Henry Flagler in Miami, Florida.  Opened on January 16, 1897, the Royal Palm Hotel was one of the first hotels in the Miami area.  Five stories tall with a sixth-floor salon, the Royal Palm Hotel featured the city's first electric lights, elevators and swimming pool.  Almost thirty years later, The Royal Palm Hotel was grievously damaged by the 1926 hurricane, and infested with termites.  In 1930, it was condemned and torn down.  The hotel was built on the site of a Tequesta village.  A large mound was removed to make way for the hotel veranda.  Between 50 and 60 skulls were found in the mound, and tossed into barrels.  Some were later given away as souvenirs.

Glennwanis Hotel: The Glennwanis Hotel is a historic hotel in Glennville, Georgia, Tattnall County, Georgia, built on the site of the Hughes Hotel.  The hotel is located at 209-215 East Barnard Street.  The old Hughes Hotel was built out of Georgia pine circa 1905 and burned in 1920.  The Glennwanis was built in brick in 1926.  The local Kiwanis club led the effort to get the replacement hotel built, and organized a Glennville Hotel Company with directors being local business leaders.  The wife of a local doctor won a naming contest with the name "Glennwanis Hotel", a suggestion combining "Glennville" and "Kiwanis".

Condado Vanderbilt Hotel: The Condado Vanderbilt Hotel on Ashford Avenue in the district of Condado, San Juan, in the U.S. territory of Puerto Rico is a hotel built in 1919.  It has also been known as Grand Hotel Condado Vanderbilt, The Condado Hotel, Hotel Condado, Condado Beach Hotel, and the Hyatt Puerto Rico Hotel.  It was listed on the National Register of Historic Places in 2008.  The hotel was designed by the architectural firm Warren and Wetmore, who also designed New York's Grand Central Terminal.  It was built by the Vanderbilt family and it marked the beginning of high end tourism in Puerto Rico.  The hotel reopened partially on 16 October 2012, beginning December 1, 2014, its guestrooms and suites located in two adjacent 11-story towers would be made available and the Condado Vanderbilt Hotel will once again welcome guests for hotel stays and five star around-the-clock service.  The renovated hotel also features five restaurants, one of which, "1919", is credited as "Puerto Rico's finest restaurant".

Dunes (hotel and casino): The Dunes Hotel was a hotel and casino on the Las Vegas Strip in Paradise, Nevada, that operated from May 23, 1955 to January 26, 1993.  Designed by architect Maxwell Starkman, it was the tenth resort to open on the Strip.  Bellagio now stands on the former grounds.  The Dunes golf course is now occupied by parts of Monte Carlo, New York-New York, CityCenter, and Cosmopolitan, and T-Mobile Arena.

Lennox Hotel: The Courtyard St. Louis Downtown/Convention Center is a historic hotel in downtown St. Louis, Missouri.  The 25-story hotel opened on September 2, 1929 as the Lennox Hotel and was the tallest hotel in the city upon its opening.  Designed by Preston J. Bradshaw in the Renaissance Revival style, the building features terra cotta faces and cornices.  The hotel, along with the Hotel Statler and the Mayfair Hotel, was built as part of a commercial boom in downtown St. Louis in the 1920s.  It was the last hotel built in the area before the Great Depression, and another hotel did not open in downtown St. Louis until 1963.  The Lennox Hotel eventually closed after newer hotels were built in the 1970s.  The hotel was added to the National Register of Historic Places on September 6, 1984.

Supporting paragraphs: Roger Thomas (designer) Bellagio (resort)
Answer: Roger Thomas