Editing Help Please

I would be extremely grateful if someone would be able to assist me with this photo. In a nutshell I would like the lady on the very left hand side edited out. I enjoy editing but my skills go nowhere near being able to do this and still be left with a natural looking photo as if she wasn't there in the first place.

I have uploaded the high res jpg and I really would like to end up with the same or as close as possible high res jpg although I understand there may be some loss when it is saved again. I don't have the RAW file.

Any help would be gratefully received.

If anyone is able to assist and can't access the high res file then please let me know what I need to do to make it available.

Thank you.