what would be the best way to implement a price table for a hotel into the detailed listing? Something that the hotel owner can fill out himself… Season, pre-season prices etc.

Is there any build in option how to implement tables into the listing? Or something similar…

at the moment there isn’t really anything that would allow a business owner to create a pricing table. You could try building that with custom fields to get the data and css to order it as a table in the front end, but I’m not 100% sure you can make exactly what you want without a customization.