Thanks for all the comments everyone—even though some were less than inspiring. I was able to pull the effect off by keyframing the position of a duplicate layer flipped on the Y axis, blurring it, and lowering the opacity. Luckily, there were only a few short shots that required the reflection. I also gave the host a shadow by duplicating the original layer, filling it with black, skewing it, blurring it, and then lowering the opacity. Once again, I keyframed the position of the shadow to move with the placement of the host’s feet. This help add to the illusion that the host was walking through the space and helped to pul attention away from the imperfect reflection.
So for next time, what is the solution to achieve a proper reflection? Must it be captured during the shoot? Seems that unless you are lucky enough to be working with a straight-on shot, results can be less than acceptable.