Hi,
Thanks for using WooCommerce Tickets. I can help out here.
I am not aware of any plugin to do as you ask. We are working on the feature ourselves and it is being developed, but not ready for release yet. I am not sure on the exact release for it either.
A customer did provide a customization that might help here:
https://theeventscalendar.com/support/forums/topic/want-to-change-the-label-and-placeholder-text-at-checkout-check-this-out/
You might be able to use that to get the information you need.
Let me know if you have any follow up questions.
Thanks