Mon Dieu, quelle barbarie!
You’re shattering illusions here, Violette.
Ach du lieber Himmel, das darf doch nicht wahr sein!
Tell me it isn’t so.
[Literally, Oh my goodness, that can’t possibly be true!]
P.S. Take a look at this post. Look at the link to the website. You’ll also see the legal contract and the requirement of a security deposit. The process this Host takes might be off-putting for some prospective guests, but I think that’s the idea. She wants the guests she wants.