Hello, my current guests will be leaving 4 days early, but purposely booked the later date for the monthly rate savings I offer. I am wondering if there is a way to make the 4 days available to book on my calendar without altering the current guest's reservation? I'm assuming double booking dates won't work, but I'd rather not modify the current reservation because it has been paid out and they are not due a refund. Let me know if there's some way to make dates available that are booked. Thanks!