Good morning,
the request is clear: an automated workflow is needed for camper bookings.
I have more than a decade of experience in web programming and troubleshooting: I can develop a complete system customized for you, integrated with your wordpress data, or even develop a wordpress plugin to manage customer operations and activities that need to be integrated (such as driving license, payments, etc ...).
If you are interested, we can discuss your needs in depth and find a solution that fits your expectations.
Best Regards