Offering free 30 min session- not working.

Hi Brooke- Thanks for your material and support I have listened to you for some time now. One thing I am trying right now is to offer a free 30 min session as you have suggested. While the ad has gotten a lot of attention and I have had some sign ups for free sessions I have had no one sign up for other programs and I have actually had quite a few people not show up to the session- I even had one person hang up on me today (she probably thought I was selling something). I am working on getting clearer on my message of what I can do for people… but not sure what else I can do? My site is and I coach autism parents. Thanks!