Cure for the common memory

Overheard in the kitchen...

"Hi, Mommy! Remember me?"

"Yes," I reply, "you're that beautiful girl who lives in our house!"

"Uh huh."

"Wait, you might be my daughter, too! Are you my daughter?"

"Nooooo! I not your daughter!"

"Oh. I must have the wrong person."

"Oh. Yeah."

"Are you sure you're not my daughter?"

"No, I'm your daughter!"

"Oh! You're my daughter??? You must be the person I was thinking of! I do remember you!"

"Yeah!"