Except if you are speaking about two parties in which one will help but the other cannot. Since there is no context here that helps determine this, I keep referring to multiple parties when "will" is used.
What would be "They want help.."? It obviously is wrong with the context but it is the first meaning that comes to mind when I see this excercise. I'd almost expect " They want to help" to be translated "De vil å hjelpe." Is that wrong?