After a decade away, Jeff Katz—the erstwhile CEO of Sabre, Travelocity and Orbitz—turned up in a new role at ASTA's Global Conference in Reno. As a senior executive at American Airlines, and then as head of the biggest GDS and the first online travel agency, Katz was a fixture at travel-industry events in the 1990s and 2000s. Katz currently is the CEO and managing partner of KA Holdings, an investment firm in travel, technology and environmental businesses. Last week he made a 10-minute appearance at an ASTA press conference before being whisked behind closed doors to address ASTA's Premium Members. In a brief presentation with little fanfare, Katz introduced his newest tech venture, on which he is partnering with the Boston Consulting Group, with funding from American and United Airlines, Hilton Worldwide, Hyatt Hotels, Intercontinental Hotel Group, and Marriott International.