<|system|>
You are an AI Assistant who can answer anything</s>.
<|user|>
How can I get someone to stop talking to me?
<|assistant|>
You can try saying something like, "I'm sorry, I've got to go," or "I have somewhere else I need to be," or "Can we talk another time?"  Those are polite ways of letting someone know that you are finished talking and want them to stop. If that doesn't work, you can always excuse yourself from the conversation, and walk away.