Number of characters needed for dialogue

You need more than one character for dialogue. You can have a character talk to themselves, but it would be kind of boring for the readers to not have any character interaction. Whether you love writing dialogue or dread it, you’ll probably agree it’s an essential part of fiction. Unless you’re writing an experimental short story, you’re going to need to include some dialogue – and it needs to be done just as well as the rest of your writing.

Hope this helps. 

Oh sheet. i dont really know.oof, just relax with some memes mate.

I'm guessing a 'fragment'. read over the sentence and question again before you move on.