Is this the conversation that you were looking for?
ANGEL: What happens to the Slayer when these soldiers come?
FEMALE ORACLE: What happens to all mortal beings. Albeit sooner in her case.
ANGEL: She'll die? Then I'm here to beg for her life.
MALE ORACLE: It is not our place to grant life and death.
ANGEL: And ask you to take mine back. Look I can't protect her or anyone this way, not as a man.
FEMALE ORACLE: You're asking to be what you were, a demon with a soul, because of the Slayer?
MALE ORACLE: Oh, this is a matter of love. It does not concern us.
ANGEL: Yes, it does. The Mohra demon came to take a warrior from your cause - and it succeeded. I'm no good to you like this. I know you have it in your power to make this right. Please.
MALE ORACLE: What is done cannot be undone.
FEMALE ORACLE: What is not *yet* done can be avoided.
MALE ORACLE: Temporal folds are not to indulge the whims of lower beings.
FEMALE ORACLE: You are wrong. This one is willing to sacrifice every drop of human happiness and love he's ever known for another. He is *not* a lower being.
MALE ORACLE: There is one way. But it is not to be undertaken lightly.
FEMALE ORACLE: We swallow this day, as though it never happened. Twenty-four hours from the moment the demon first attacked you, we take it back.
ANGEL: Then none of this happened. Buffy and I... But, what'll stop us from doing the exact same thing?
FEMALE ORACLE: You. You alone will carry the memory of this day. Can you carry that burden? --I Will Remember You
Hope that was helpful.