Building a mobile application (android , ios) using React native

I want to make car washing service mobile application using react native (android & ios) (UX , UI) and this service app will include
1) conditional booking service . (Days and time will depend on some choices in booking and the whole booking system can be easily editable and controlled through an easy admin panel ) .

2)registration form for the customers
3)a user friendly admin panel to control the whole application easily
4) the app will include online payment in addition to cash
5) a full security system on the application
Some other data will be more cleared , after contact .