I am looking for someone.?

I am looking for a girl named Sierra. I left her note with my email, first and last name (with the city and state I live in) , and my cell #, right in front of her unit. She says she is 13 years old, she is from ohio, and she was born in august. I don't know her last name, her specific city , or the specific date in august she was born in! I tolled her to add me on facebook on the note and I hope she does, but anyway I met her in Myrtle Beach SC in a place called Sea Castle. Is there any possible way I could find her, Thank you SO MUCH!