Republican President-elect Donald Trump said on Thursday he was spending part of his Thanksgiving holiday trying to convince an Indiana air conditioner maker to stay in the United States - reflecting his election campaign pledge to stop the flow of jobs abroad. Trump, who is also weighing decisions on his Cabinet during a family retreat at his Mar-a-Lago golf resort in Florida, said on Twitter that he was "working hard, even on Thanksgiving, trying to get Carrier A.C. Company to stay in the U.S. (Indiana). MAKING PROGRESS - Will know soon!" Carrier Corp, a division of United Technologies Corp (UTX.N), responded on Twitter that the company has had "discussions with the incoming administration" but had "nothing to announce at this time." A representative for the company had no additional comment.…