Never make a sales pitch as the way you introduce yourself. What you CAN say is how you help people and businesses.

Buying & selling is not a process, but a story, the base of this story is “need”. Need arising out of necessity or a feeling to own / experience that product / service. The customer narrates the base (need) of the story, but how well the story develops is left to the storytelling (sales pitch) skills of salesperson, sometimes the storytelling leaves such an impression that the customer has no choice but to be a part of that story.