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IOSR Booking and payment procedure
From Elxis Official Documentation
The diagram bellow shows the booking/payment procedure on IOS Reservations hotel booking system. The payment processor will trigger the selected by the client payment method. If you wish to process credit cards directly from within your web site without the customer leaving the site then use the PayPal Pro payment method. During the booking/payment procedure the client can go back to change his data or the reservation if he wants to add/change something. Only registered users can book rooms/services, so the login step is required. If SSL/TLS switch is enabled the inner pages will be encrypted (SSL enabled) and the system will refuse access to them without a secure connection. The client can also start the payment procedure directly from his reservations page for unpaid reservations.