Hitit Computer Services iFlyRes Cloud-based next-generation airline passenger service system.[2][3][4][5] IBS Software Navitaire New Skies Integrated Customer Centric Passenger Service System Integrated reservations, departure control, inventory system and e-commerce platform. Navitaire Radixx International Hybrid travel distribution and PSS. SabreSonic Customer Sales & Service Integrated reservations, departure control, inventory system and e-commerce platform.