The plaintiff, who filed under the pseudonym John Doe, is an Iranian citizen and legal permanent resident of the U.S. who lives in Chicago with his wife and three children. According to the suit, the man was planning to return to Chicago early this month in time for the birth of his first grandchild, but when he tried to get a return flight Saturday, the ticketing agency "refused to issue a ticket for his travel to the United States due to the executive order."