Custom Fee Fields display free or booked slots

I use event booking with custom fée fields and would like to display on the website frontend free or Booked slots by custom fée fields. Is there anyway to do that?
for instance with 3 options: Adult, Student, Children display number of adults, students, childrens booking.

Your question is not clear to me. Could you please send me link to the page and explain the change you want so that I can understand and answer your question?

Regards,

Tuan