To achieve this, you will have to run Tickera alongside WooCommerce via our Bridge for WooCommerce. This will allow you to create and sell Tickera tickets as variable WooCommerce products (more information on how to create ticket types as WooCommerce products can be found here). Now, when you assign a variable product (as a ticket) to some seating group, when customer clicks on that seat a popup will appear offering them to select one of the variations. Of course, these variations can be anything you like (Adult, Children, etc.) and each variation can have different price.