Woocommerce and Event Manager

Hi there

I have a question regarding Woocommerce and Event Manager. I manage a website for a customer that organizes training camps. Users on the website can purchase a single entrance or multi entrance package for those camps. The events are posted with the Event Manager plugin and each user must register for an event if they want to participate. Now i want to restrict users to be able to register for an event if they didn’t buy a “ticket” on the website. The problem I’m facing is when a user has a ordered a package with 10 tickets. How can I deduct a ticket each time they register for an event?
Is there a plugin that provides this functionality, or is it possible to hack a solution with the plugins I am already using. Does anyone have experience with something similar?

I appreciate any kind of help or advice.

Thanks