I figured I'd try to potentially find someone here who perhaps might have a room at the Hyatt Regency and find themselves unable to attend! If so, I am definitely looking to take your room. I am preferably looking for a single King room for Thursday through Sunday (though Friday through Sunday can work too). I am periodically calling the Regency to see if any room slots have become available, but if you find yourself in a bind, let me know! I took a room from someone last year and the transfer process was pretty easy.
Again, this is an offer to take your room reservation at the Hyatt Regency if you are unable to attend ACen '18. Just leave a comment here or send me a message and we can work out all the details. Thank you!