Perfecting the Pitch

As a sole proprietor, small business I've been struggling with the best ways to introduce myself and my services to the greater community.  I'm a really good at my core services, but marketing and self promotion are not my forte. This year I would like to focus on cultivating my "elevator pitch".  As an introvert, going up to random strangers at events and executing a concise pitch with confidence does not come easy. 

A quick Google search returns all sorts of advice on creating a "perfect" elevator pitch.  There is conflicting advice on pitch length, key points, must-do's, and pitfalls to avoid.  I fell it all boils down to: peak their interest, introduce the benefit you provide, and keep the conversation going.  
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In the name of self improvement, here it goes, my elevator pitch.  Feedback and constructive criticism welcome.

My name is Kari Dreyling and I am known as a client whisperer and human fire blanket.  I help companies assess and remove roadblocks so they are able to deliver value to their customers. My primary focus is on client management and technical program management but I have a broad background of experience to pull from.  Are there any challenges in how your teams work?  I may be able to help.