Extend background of 1 image in PS

I have a photo that I need edited. Just one. That's it!

I need the edited image to have dimensions of 2000 x 1315.

The current photo has a woman on the left side of the image; I need her to be on the right side of the image.

This means you will need to clone the background somehow in PS to "add" background where it currently isn't. It needs to be as good as possible, without an obvious line showing where the old photo ended.

That's it! One photo and you're done.