firstly, please drop the 'sir'
correct, I don't believe due to lack of empirical evidence.
god does not exist <- is a claim, albeit a negative claim that can not be proven via negative proof.
I don't believe that god exists. <- is not a claim, it is the rejection of the claim 'god exists'
That's why I can say that I make no claims.
It is not possible to know if god exists or not.
1. X exists because its non-existence has not been proven, or
2. X does not exist because its existence has not been proven
Which do you think is more reasonable, 1 or 2?