Here's a sample message I have sent to a few people on FB who use a lot of Live Videos for selling:

Hello, I am a big fan of yours and love your sessions. I wanted to suggest you to look at nFusz for adding CTA inside your Live videos or regular videos on Facebook and other social platforms. nFusz has filed a Patent for their Technology and I can connect you with their leadership team. I am in investor in this company and they are growing big time. Imagine, if people can directly click and buy tickets inside your videos while it's running (without leaving the video), how great will that be.....Good Luck !!