ALPHARETTA, Ga.--(BUSINESS WIRE)--Agilysys, Inc. (Nasdaq: AGYS), a leading global provider of next-generation hospitality software solutions and services, today announced that American Airlines Center in Dallas has selected the InfoGenesis Flex™ mobile point-of-sale system for more streamlined food and beverage service. American Airlines Center, which is one of the busiest stadiums in the United States, has used the InfoGenesis POS system, the foundation for InfoGenesis Flex, since it opened in