His sixteen years experience working for Thomas Cook included being director of financial services enterprises, responsibility for Thomas Cook's foreign exchange activities and being finance director. John has also got 7 years experience as financial services director of Going Places Leisure Travel Ltd. He joined Silverjet airline in 2005 and resigned in September 2007 with Martin Lynch replacing him. Bavister's resignation followed an £18 million loss which Silverjet suffered in its year to March 2007, as a result of start-up costs. Silverjet Airline's history