Howdy capstone,
We too would like for that to be possible. It is on our roadmap for a future release, alongside a fair share of improvements to checkin and event management. At the moment though, all I know of are hacks and work arounds. There are some WooCommerce plugins that allow you to add extra fields when a user checks out. I have not personally used them. I know that they are a bit limited in capability, especially because you have to rely on people to type all the names into one box and separate them by commas. But, it is an option that is available now should you need, while we wait for a full-fledged solution to come down the pipes.
Does that answer your question? Please let me know if I can clarify or anything. Happy to do so. Cheers!
– Brook