Abstract: Methods and systems may be used to allow a first customer to book an appointment. A second customer may view the appointment and initiate a request to swap for the reserved appointment. The first customer may accept or reject the offer. If the offer is accepted, the appointment may be transferred from the first customer to the second customer. A computer application may facilitate the transfer of payment from the second customer to any or all of: the customer holding the appointment, the service provider for whom the appointment was made, and the provider of the computer application.