Different form for same event?

I want the volunteers to register and add to the participant list. Is it possible to have a different form for them that will add participant to the same event?

Hello

I still don't understand how it should work. Could you please explain more details about it?

Tuan

When I have used other system there is a form and it is connected to a database. With other systems I have used two different forms, and they both add data to the same database, the same list of participants. One form for the ordinary participants and one form that is more hidden and is for us that is internal. The speakers, the volunteers and us that work with the conference. Us that participate for free or nearly free. I need to keep track of how many we are in total to order lunch and have enough seats.