Simple booking plugin for wordpress

The plugin will work in few steps: 1. select date time interval - depending on the length the price will be calculated (read the logic below) 2. select extra features (each has its own price and name, must be setup from backend) 3. display the calculated price (time interval + extras) and the bank account info where to pay. There is no need to have any overview how many bookings are already on a single day, or any limit, just two dropdowns with datetime start and datetime end. Depending on the selection the first part of the price will be calculated. The price will vary with the amount of hours, will give the exact numbers soon, but it will be around 5 if sentences.. If amount bigger than 21 hours than price is 20€, if betwen 21 and 27 than 18€ and so on.. There must be an option to setup the extra features from the backend - example of extra feature: extra meal - 10 We dont need the plugin to be styled much, just plain white and black, but ofc, responsive.