Hello there!
My name's Paul. I'm a freelance Programmer, Web/Graphic Designer.
I read through your post and checked out that "straytravel" website, to get a better feel for what you're trying to achieve. I'm pretty positive that I can help you get what you want done.
Just about every day I work with PHP, MySQL, HTML, and everything in between. So I know my around building websites real well.
I have lots of experience building back ends as well, and can get you the Booking System and User Management System you want (given some more information about the two, so I know).
But, if you'd like to see my profile online, you can search my Freelancer name in google, or just simply put a dot com at the end.
I'm very interested in your project though!
Looking forward to hearing back from you.
Thanks in advance,
Paul