Echo

Do you hear something in the basement?
I don't know, let's find out.
Is anyone down there? (Is anyone down there?)
It's only a echo. (It's only a echo.)
I wonder why there's a echo? (How should I know?)
That's not a real echo. (That's not a real echo.)
Are you a real echo? (None of your business.)
Let's get out of here. (Amstray.)
Wait for me! (Wait for me!)