Is it really being there if...

Cameron, 7 1/2, is excited for a campout with his dad this weekend. He was describing to Abigail what the camping site was like, and Abigail said, "Oh yeah, I've been there." "No you haven't!" Said Cameron. "You didn't go with us last time." To which Abigail responded, "Uh-huh! I've been there in my dream!"