"Knock Knock - Cyril" joke

Knock Knock
Who's there!
Cyril!
Cyril who?
Cyril thing - no imitations here! Knock Knock
Who's there!
Cyril!
Cyril who?
Cyril pleasure to meet you again! Knock Knock
Who's there!
Cyril!
Cyril who?
Cyril nice to meet you!