Create a customized online appointment booking/cancel/reschedule and application process tracking on wordpress

We are a Paris based embassy who would like to add following services to our current WordPress website (located at [login to view URL]). We prefer it to be user-friendly on both interfaces, user- and administration side: Required services for: [login to view URL] User side: - Online registration - Login page - Online appointment booking page (choose application type, read requirements, fee, process duration) - Reschedule/Cancel an appointment - E-mail and SMS confirmation - Online process track - E-mail and SMS notifications about processing steps - Receive messages from Consular Services - Choose interface language (View examples for user-interface) Admin side: - Edit and submit appointment availability hours/time slots (Administrator and Manager) - Edit and submit a list of services (application types), requirements, (e.g. it takes 3-5 weeks to process a passport) processing fees (Administrator and Manager) - Edit and submit appointment duration (Administrator and Manager) - Edit the booking availability for an available appointment (when it is too late to book an appointment. For example 1 hour before the actual appointment time) (Administrator and Manager) - Set unavailability dates e.g. holidays. (Administrator) - Edit and submit appointment types (e.g. Submit application, receive information, meeting etc.) (Administrator and Manager) - Choose auto-confirmation for all available appointments (Administrator) - Edit and submit new roles and employees: Administrator, Manager, Employee (Administrator) - Edit and submit language pack (Administrator) - View and print appointments list. Filter appointments after: Day, Week, Month, Status, Employee, Service (All) - View and update process info on an appointment (All) - Approve one or multiple appointments (All) - Send message (SMS or Email) to the applicant (All) - Receive on site real-time notifications about upcoming appointments, unprocessed appointments (not updated with process info), unfinished process (after service type and process duration) (All) (We will send you some examples for management part ASAP)