As far as business or professional links are concerned, the State Department said a legitimate relationship must be "formal, documented and formed in the ordinary course rather than for the purpose of evading" the ban. Journalists, students, workers or lecturers who have valid invitations or employment contracts in the U.S. would be exempt from the ban. The exemption does not apply to those who seek a relationship with an American business or educational institution purely for the purpose of avoiding the rules, the cable said. A hotel reservation or car rental contract, even if it was pre-paid, would also not count, it said.