All we can offer is a breather, a temporary safety zone in which to help explore feelings and help review resources and options. On rare occasions, when we believe someone is in physical danger from themselves or others, we intervene and send help. Our goal is not to intervene, but make intervention unnecessary because we've helped the caller reach a safer place - mentally or physically. We try and help the caller keep control of as much of their life as possible. We don't give advise and will sometimes tell you that.
Suicide is a permanent solution to a temporary problem.