Hey Samantha,
Thanks for reaching out.
There’s not an official or “out-of-the-box” way to do this sort of thing with our plugins at this time. The main details in this respect would come from the HTML header of the page, which is mostly dictated by your theme.
You would unfortunately have to get pretty creative with some custom coding, and write custom filters for wp_head that echo proper meta tags based on the event page displaying.
So to implement this, you would have to write that custom code or hire a professional developer to do it for you. We have a list of great developers here → http://m.tri.be/18k1 (and have no affiliation with any of these folks—they’re simply some well-respected names in the community that we’ve compiled to share in situations like this one).
I’m sorry to disappoint, but hope this information helps you move forward! Please note that you may also be able to find free plugins on wordpress.org that add this sort of functionality—we do not endorse or recommend any specific such plugin, but here is an example of one that I found that adds twitter card details: https://wordpress.org/plugins/jm-twitter-cards/
Please let me know if there are any other issues or questions I can try to help with!
Sincerely,
George