Dr. Peter Venkman:
"What I'd really like to do is talk to Dana. Dana? It's Peter."
Dana Barrett:
"There is no Dana, there is only Zuul."
Dr. Peter Venkman
"Oh, Zuulie, you nut, now c'mon. Just relax, c'mon. I want to talk to Dana. Dana, Dana. Can I talk to Dana?"
Dana Berrett: [in an inhuman demonic voice]
"There is no Dana, only Zuul!"
Dr. Peter Venkman:
"What a lovely singing voice you must have."