It's possible that:
* You're misremembering the author's name. Double-check the spelling and try searching for similar names.
* The author is not well-known. They might be a lesser-known writer, self-published author, or author writing in a niche genre.
* The name is fictional. It's possible the name "Dante Sierra" is a character in a book or movie.
To help you find the author you're looking for, please provide more information:
* What kind of books does the author write? (Genre, subject matter)
* Do you remember any titles of their books?
* Where did you encounter the name? (Website, book, social media)
With more details, I can help you find the right author.