By Rodrigo Campos and Libby George NEW YORK/LONDON (Reuters) -Argentina's international dollar bonds rose in a volatile session on Thursday after U.S. Treasury Secretary Scott Bessent said the U.S. is "not putting money into Argentina" shortly after saying that upcoming in-person discussions in Washington would "meaningfully advance" the country's pledge of financial support for President Javier Milei's government. The peso was little changed throughout the day at about 1,424 per dollar, hinting at int ...