Question: Who currently serves as the executive chairman of the company who owns and operates Sam's Town Hotel and Gambling Hall, Shreveport?

<P0-S0> Boyd Gaming Corporation is an American gaming and hospitality company based in Paradise, Nevada. <P0-S1>  The company continues to be run by founder Sam Boyd's family under the management of Sam's son, Bill Boyd (born 1931), who currently serves as the company's executive chairman after retiring as CEO in January 2008. <SEP> <P1-S0>  It is owned and operated by Boyd Gaming. <P1-S1> Sam's Town Shreveport is a hotel and casino in Shreveport, Louisiana. <SEP> <P2-S0>  He worked at MasterCard’s U.S. region board since March 2000. <P2-S1>  He served as a director of MasterCard International Inc. (also known as MasterCard Worldwide) (formerly, MasterCard Inc.), since March 17, 2005. <P2-S2>  He has been a director of Avant Credit Corporation since December 18, 2014. <P2-S3>  He served as chairman of the board and chief executive officer of HSBC Finance Corporation from April 2005 to February 2007. <P2-S4>  He served as an executive chairman of HSBC Financial Corporation Limited since April 2005 and served as its chief executive officer from April 2005 to February 15, 2007. <P2-S5>  He served as vice chairman and director of HSBC Financial Corporation Limited., (Formerly Household International Inc.). <P2-S6>  He served as senior vice president of The Boston Consulting Group in Los Angeles and co-leader of Boston Consulting Group Financial Services Practice in the United States. <P2-S7>  He served as the chief executive of HS BC North America Holdings Inc., of HSBC Finance Corp., from March 2005 to February 15, 2007. <P2-S8>  From May 2007 to July 2007, he served as a consultant to the board of directors at TransUnion. <P2-S9>  Mehta serves as consultant of TransUnion. <P2-S10>  He stepped down as head of the North American unit after the lender raised its forecast for bad loans in the U.S. <P2-S11>  He served as the chief executive officer of HSBC North America Holdings Inc. since March 2005. <P2-S12>  He served as unit chairman of HSBC Holdings PLC and served as its board member since March 2005. <P2-S13>  He served as the chief executive officer of HSBC Bank USA, N.A. until February 2007. <P2-S14>  Mehta served as consultant of TransUnion since May 2007 until July 2007. <SEP> <P3-S0> Vegas Vic is a Las Vegas, Nevada neon sign that resembles a cowboy that was erected on the exterior of The Pioneer Club in Las Vegas in 1951. <P3-S1>  The sign was a departure in graphic design from typeface based neon signs, to a friendly and welcoming human form of a cowboy. <P3-S2>  The sign's human-like abilities of talking and waving its arm constituted an immediate acceptance as the unofficial welcoming sign reproduced thousands of times over the years and all over the world. <P3-S3>  The trademark is currently owned by Pioneer Hotel, Inc. which owns and operates the Pioneer Hotel and Gambling Hall in Laughlin, Nevada. <P3-S4>  The sign can still be found at 25 E Fremont Street, where he has been since 1951 on the exterior of what used to be The Pioneer Club but is currently a souvenir shop. <P3-S5>  Pioneer Hotel, Inc. is the owner of the Pioneer Hotel and Gambling Hall along the Colorado River in Laughlin, Nevada that has a twin of the Vegas Vic image on another large sign referred to as River Rick.