I think what you need to do is take applications for someone to go through applications for a P.A. instead of assigning the job out to hard working Joe's (or Jane's) that have very busy life that you hardly know.
I will do it for you, if you wish. But know this, as you never asked me, I am going to pick the most needy, crazy and dare I say unqualified person I can find and tell them right off the bat "Your the person she has been looking for her whole life! Not just as her P.A., but if you play your cards right, I think you have a real shot at being her future husband in 3-4 weeks! Congratulations in advance man!"