I should structure the response to first acknowledge the request, state the policy against providing pirated software, explain the consequences, and direct them to where they can legally obtain the product key. Also, offer to help with activation issues if they have a legitimate key.
The user might not be aware of the legal implications. Maybe they lost their key or want a free version. I should advise them to purchase from official sources or check with legitimate retailers. Also, mentioning the risks of using pirated software, like malware, is important.
Since I can't provide or generate product keys, the response should guide them to the official website or suggest alternatives. Maybe they're looking for a downloadable version? But again, without a valid license, that's not possible.