new ban u.s. travel nationals seven middle eastern countries catch airline industry unprepared flight crew state also bar enter international air transport association say saturday u.s. customs border protection cbp brief global trade group passport-holders state iran iraq include cabin crew bar entry unite state iata say email member airlines see reuters email underscore airlines confusion situation well challenge may face crew schedule airlines also stand lose business instance around 35,000 travelers iran visit unite state 2015 accord u.s. department homeland security much development come weekend time iata facilitation team duty travel unfortunately response slow would prefer email say number question yet resolve executive order president donald trump ban travelers passports iran iraq libya somalia sudan syria yemen 90 days iata inform lawful permanent residents unite state green-card holders countries include ban however trump administration official tell reporters green-card holders countries need check u.s. consulate see whether return cause confusion airlines still plan follow cbp guidance gulf airlines emirates etihad airways qatar airways say early websites passengers would need green card diplomatic visa enter unite state emirates spokeswoman say small number passengers affect ban certain flight crew bar u.s. entry trump order iata memo