Question: What hotel did the influential National Crime Syndicate member found with David Berman?

full_context: Document 1: Al Capone: Alphonse Gabriel Capone ( ; ] ; January 17, 1899 – January 25, 1947), sometimes known by the nickname Scarface, was an American mobster, crime boss and businessman who attained fame during the Prohibition era as the co-founder and boss of the Chicago Outfit. His seven-year reign as crime boss ended when he was 33 years old.
Document 2: Sam Giancana: Salvatore "Mooney Sam" Giancana (born Salvatore Giangana; June 15, 1908 – June 19, 1975), better known as Sam Giancana, was a Sicilian American mobster, notable for being boss of the Chicago Outfit from 1957–1966. Among his other nicknames were, "Momo", "Sam the Cigar," and "Sammy."
Document 3: Moe Greene: Morris "Moe" Greene is a fictional character appearing in Mario Puzo's 1969 novel "The Godfather" and the 1972 movie of the same name. The character's name is a composite of real Las Vegas mobsters Moe Dalitz, or possibly Moe Sedway, and Gus Greenbaum. However, both Greene's character and personality are actually based on Bugsy Siegel: his affiliation with the mob in Los Angeles, his involvement in the development of Las Vegas, and his flamboyant tendencies. Greene is portrayed in the movie by Alex Rocco.
Document 4: List of Cohen crime family members: The Cohen crime family, or the Siegel-Cohen crime syndicate, was a Jewish-Italian crime family that was active from 1933 to 1961. The family was founded by New York Jewish mobster Benjamin "Bugsy" Siegel in the early 1930s. He had Los Angeles Mafia boss Jack Dragna and Jewish mobsters Mickey Cohen and Moe Sedway as his lieutenants. He created the biggest prostitution ring, gambling and protection rackets in Las Vegas and Los Angeles. He also expanded into drug trafficking and bookmaking.
Document 5: Hyman Roth: Hyman Roth (born Hyman Suchowsky; 1891 – 1960) is a fictional character and antagonist in "The Godfather Part II" and a minor character in the novel "The Godfather Returns". He is a Jewish investor and a business partner of Vito Corleone, and later his son Michael Corleone. He is based on Florida mobster Meyer Lansky and was played by Lee Strasberg in the movie.
Document 6: Bugsy Siegel: Benjamin "Bugsy" Siegel (February 28, 1906 – June 20, 1947) was a Jewish American mobster. Siegel was known as one of the most "infamous and feared gangsters of his day". Described as handsome and charismatic, he became one of the first front-page celebrity gangsters. He was also a driving force behind the development of the Las Vegas Strip. Siegel was not only influential within the Jewish mob but, like his friend and fellow gangster Meyer Lansky, he also held significant influence within the Italian-American Mafia and the largely Italian-Jewish National Crime Syndicate.
Document 7: Cohen crime family: The Cohen crime family, or the Siegel crime syndicate, was an Italian-American Mafia / Jewish Mafia crime family created by New York Jewish American mobster Benjamin "Bugsy" Siegel in the early 1930s. Siegel ran Los Angeles and later Las Vegas' illegal gambling and prostitution rings with his lieutenants Mickey Cohen, David Berman, Harold "Hooky" Rothman, Moe Sedway and boss of the L.A. family Jack Dragna.
Document 8: Bugsy: Bugsy is a 1991 American crime-drama film directed by Barry Levinson which tells the story of mobster Bugsy Siegel and his relationship with Virginia Hill. It stars Warren Beatty as Siegel and Annette Bening as Hill, as well as Harvey Keitel, Ben Kingsley, Elliott Gould, and Joe Mantegna. The screenplay was written by James Toback from research material by Dean Jennings' 1967 book "We Only Kill Each Other".
Document 9: Susan Berman: Susan Jane Berman (May 18, 1945 – December 24, 2000) was an American journalist, author, and the daughter of Davie "Davie the Jew" Berman, a Las Vegas mob figure. She wrote about her late-in-life realization of her father's role in that criminal empire.
Document 10: Joseph Valachi: Joseph Michael "Joe Cargo" Valachi (September 22, 1904 – April 3, 1971) was an American gangster, notable as the first member of the Italian-American Mafia to publicly acknowledge its existence, and credited with popularization of the term "Cosa Nostra".
Document 11: Lucky Luciano: Charles "Lucky" Luciano ( ; born Salvatore Lucania November 24, 1897 – January 26, 1962) was an Italian-American mobster and crime boss. Luciano is considered the father of modern organized crime in the United States for the establishment of the first Commission. He was also the first official boss of the modern Genovese crime family. He was, along with his associates, instrumental in the development of the National Crime Syndicate.
Document 12: Abraham Weinberg: Abraham "Bo" Weinberg (January 7, 1900 – September 9, 1935) was a Jewish New York City mobster who became a hitman and chief lieutenant for the Prohibition-era gang boss Dutch Schultz. As Schultz expanded his bootlegging operations into Manhattan during Prohibition, he recruited Abe Weinberg and his brother George into his gang. Abe Weinberg would become one of Schultz's top gunmen during the Manhattan Bootleg Wars and was a later suspect in the high-profile gangland slayings of Jack "Legs" Diamond, Vincent "Mad Dog" Coll, and mob boss Salvatore Maranzano.
Document 13: Moe Dalitz: Morris Barney Dalitz (December 25, 1899 – August 31, 1989), known as Moe Dalitz, was an American gangster, businessman, casino owner and philanthropist. He was one of the major figures who shaped Las Vegas, in the 20th century. He was often referred to as "Mr. Las Vegas".
Document 14: Legs Diamond: Jack "Legs" Diamond (born John Thomas Diamond (Disputed); July 10, 1897 – December 18, 1931), also known as Gentleman Jack, was an Irish American gangster in Philadelphia and New York City during the Prohibition era. A bootlegger and close associate of gambler Arnold Rothstein, Diamond survived a number of attempts on his life between 1916 and 1931, causing him to be known as the "clay pigeon of the underworld". In 1930, Diamond's nemesis Dutch Schultz remarked to his own gang, "Ain't there nobody that can shoot this guy so he don't bounce back?"
Document 15: David Berman (mobster): David Berman (1903–1957), nicknamed "Davie the Jew", was a Jewish-American organized crime figure in Iowa, New York City, Minneapolis, and Las Vegas. He was one of the pioneers of gambling in Las Vegas, where he was a partner with flamboyant mobster Bugsy Siegel at the Flamingo Hotel. Berman died a non-violent death in 1957 during surgery.
ground_truth: Flamingo Hotel