Hey there @EmiArteFlamenco - great question! At this time this is not possible, but it’s a great idea!

A viable workaround might be a routing form! Routing forms let you request information such as industry, company size, specific interests, etc. from website visitors and automatically direct them to a specific scheduling or web page based on their responses. It's great for screening and qualifying sales leads on a website or matching clients or students to the booking page of the right subject-matter expert based on their interests, program, or other criteria. You can read more about setting up routing forms, here!

If you implement a routing form, you can create questions that invitees must answer in order to be routed to your event type for booking. In your case, your question could be the agreement you speak of in your post, and the answers the invitees have to choose from can be “yes” and “no.” 

“Yes” answers would be routed for booking. “No” answers would be routed to a custom message telling them there is no availability and to try back later (or whatever you’d prefer it say).

You can read more about setting this up below: 

I hope this helps! If you run into any snags let us know - we’ll be here to assist, happily! 

P.s. check out our New User Guide - it’s super helpful while you learn the ropes!