@Nikki391 Well, I guess you should have researched this before taking all those bookings when you put the place on the market.
I agree that it would be nice if Airbnb had a process that would facilitate transferring bookings, as long as it was amenable to the guest, but you have to realize that guests booked with you based to a large extent on your ratings and reviews- neither you nor they have any way of knowing if the new owner will be a good host, or maintain the property well, unless they already have a visible history of hosting.
So you can't just pass guests on as if they were furnishings that came with the house, and if a host did that to me, I would be upset.