When I worked for us airways at TYS we would occasionally have passengers who were supposed to go to other cities. This was especially common on the dca flights where a similar one gate serves all set up.

One time, I had an older teen come off and say, "is this Greenville spartanburg?" She flew in from DCA and then we had to fly her TYS-CLT-GSP.

Personally, Id love the free mqms.