We have a confirmed reservation from a brand-new host on Airbnb. The listing was set up for auto-booking, so our request was accepted immediately and our card charged. However, all we have heard from the host was a brief message saying she would get back to us soon about those dates (even though it was by then a confirmed booking). It has been four days, and I've tried to contact her via Airbnb messaging and directly to her phone number. We are concerned that she will cancel this booking and we will be left without a place to stay. We are also Airbnb hosts, and while I understand sometimes not being able to respond right away, four days with no communication or response to questions is worrying. Since she is new, she has no reviews to give me any assurance. Advice welcome.