Enables travellers to sell hotel bookings bought anywhere, is free for both buyers and sellers to post or view listings. Buyers who bid on a room will know if their bid has been accepted within 24 hours, and can also cancel their bids up to the point that the seller responds. The seven-month-old company takes care of transferring the name on the booking and if the front desk doesn’t accept the reservation, Hall St will refund the buyer’s money.