I've been hearing about reverse hotel reservation recently. What does this mean?

Usually, the hotel will give the price. Look at the right price and the right hotel before placing an order. I am very passive. "Vacancy for sale" and "Bidding for reservation" hotel is a brand-new reverse hotel reservation mode. The hotel bids by itself, then the hotel responds immediately and finally decides which hotel to book. You can find a hotel that is more suitable for you and stay in the hotel clearly.