Create one-page mobile website

This project involves building a 1-page mobile website for booking ski lessons. The back-end has already been fully completed using CakePHP. See attached screenshot to see some of the fields that have been created. The 1-page would be something like the mockup attached. The user will be taken to this screen from a native mobile app 'Tripster' (available from Apple appstore and Google Play). We will transmit the following information from the native app: Deal ID (will need to be used to retrieve pricing info and Supplier name / Deal info) and User ID (will need to be used to retrieve user name and email). Relevant information using Deal ID and User ID needs to be pulled from the back office. Upon hitting 'Send request', the user is taken to a paypal mobile page, to which the price and user details need to be transmitted. We will also provide all designs.