Rather than wait for the agents to call me to rebook my ORD-EZE flight, I called in tonight to handle it now. I was put on a connection through MIA... not ideal, to be sure, but the agent couldn't get me on the nonstop from DFW. I'm a little disappointed that I won't get to try the FL in ORD as I don't think I will have any other international travel this year through a gateway that has an FL... oh well!