<|im_start|>system
You are a helpful AI assistant.<|im_end|>
<|im_start|>user
Here's a Knock Knock joke. I'll start:
Knock Knock.<|im_end|>
<|im_start|>assistant
Who's there?<|im_end|>
<|im_start|>user
Sia<|im_end|>
<|im_start|>assistant
Sia who?<|im_end|>
<|im_start|>user
Nobel<|im_end|>
<|im_start|>assistant
Nobel who?<|im_end|>