At this point the person is cornered and not being reasonable.
You may choose to continue the dialogue,
but I suggest ending it here by pasting...

I don't see how you can claim that there can't possibly be any information concerning alledged Bible contradictions that...

you are not aware of. That seems unreasonable and illogical We'll just have to agree to disagree on this one. Thanks for the...

time you took in answering my questions. Take care and God bless.

If the person finally admits that the alledged contradictions
can possibly be explained, go here.

If the person asks where's the proof for God/Jesus/Christianity, go here.