 The talks with the unions over the takeover by Air France-KLM collapsed when the French-Dutch carrier refused to accept union demands, hours before a deadline to win their support was to expire.As a consequence Alitalia's chairman, Maurizio Prato, resigned on April 2, 2008.Air France-KLM formally announced on Monday 21 April 2008 that the terms set for the take-over of Alitalia were no longer valid and that the offer was withdrawn.