I am staying alone in one single room. Recently an in law wanted to do interview where I reside, she call and I said no problem that se bi it’s for a few nights, unfortunately it didn’t work out. They just called now that she got another job in the area, I am a private person, I like my alone time. How do I tell them she can’t stay with me because it will be difficult to chase her and I don’t want long term guest/roommate