AMAZING HOSPITALITY ATTITUDES SINCE 1986! Since 1986, the American Hospitality Academy (AHA) has been providing hospitality training for thousands of students and young adults worldwide at premier resorts and hotels in the USA including Marriott, Ritz Carlton, Hyatt, Sheraton and Hilton. It is through this close working relationship with top industry leaders that AHA has developed an appreciation and a clear understanding of how to best teach leadership and multicultural skills that are vital to success in any career.