Langley, U.K., 2017-Feb-13 — /Travel PR News/ — Travelport (NYSE:TVPT), a leading Travel Commerce Platform, has announced that Viva Online Services (Viva.gr), a leader of online transportation and tourism services in Greece, is the first Greek agency to implement Travelport branded fares and ancillaries which allows them to make better informed air choices and improve service… Read the full press release