If you have been accumulating your frequent flyer miles and would like to trade them with another frequent flyer miles user, you can do so through a Frequent Flyer Miles Exchange program.  There are plenty of these programs available on the Internet but you need to make sure that everything is set up properly before you actually join the program.  One of the reasons why this is the case is because you could end up losing your miles to some unscrupulous person if they found a loophole in the system.  Make sure that you exchange your miles properly so that you can fly for free instead of watching them disappear.