Car Rental - WordPress Plugin

I have made a website for Car Rental using WooCommerce and this plugin : [login to view URL] RnB is a really good plugin for a Car Rental but we would like to customize according to our customer’s needs. More specifically, we want to add a new payment method in order for our customer to configure the prices per season, such like hotels do. e.x. High season -> 50€ per day | Medium season 35€ per day | Low season 20€ per day also, there has to be a way for the client to configure each season’s dates e.x. High season -> 15 July until 5 September & 20 March until 28 March | Medium season -> 10 May until 14 July | Low season 20€ per day -> 6 September until 19 March & 29 March until 9 May The prices has to be changed dynamically on the calendar, in order for the visitor to book a car in the future and the prices has to be set up according to the season’s price e.x. Let's say that today is 19 December, I want to book a car from 1st September until 11 September - the total price has to be : 1st September to 5th September = 50€ (high season) * 5 days + 6th September to 11th September = 20€(low season) * 6 days == Total Price : 370€ The whole system is already done by the plugin itself but according to months (January, February, etc) we just want to convert months to Seasons as described above. Plus, we would like for the site manager to be able to change the price on dedicated dates : e.x. December costs 15€ but days before and on Christmas cost 25€ (December 23 to 26) I'm also open to other solutions, but the job has to be done using WooCommerce somehow.