Eman,
I agree that many claim they are going to kill themselves for attention. And don't realize the hurt they inflict on others with this tactic.(I have been hurt by this)
Some though may suffer severe depression and it may be their call for help, hopefully they will get it.
I feel that if a person is of sound mind, he should have the right to terminate his life if that be his desire, and should be respected as a free moral agent who can make that choice.
I would find it very hard to assist anyone contemplating suicide if they were of good health, but if they had some terrible illness and would suffer greatly, and there was no hope of ever getting better, I might if my love for them was strong enough, offer my assistance even if it would mean legal problems for me.
If someone lived a trillion X longer than you, and had a billion X more reasoning ability would he come to the same conclusions as you?