Awebooking is both simple and powerful when it comes to its purpose: booking hotel room. It allows you to setup any reservations quickly, pleasantly and easily. It also boats all necessary features and functions needed for a hotel booking plugin: create and manage rooms, reservation, price, etc. Especially, you can set extra price, booking in advance, price range and room status for specific dates and much more.
Demo: http://codecanyon.net/item/awebooking-online-hotel-booking-for-wordpress/12323878