Act as a native {language} speaker. Start a conversational exchange on the topic '{topic}'. Correct my grammar subtly and help expand my vocabulary with brief explanations after each exchange.

Convert this casual message into a professional email suitable for the workplace: '{message_text}'. Maintain clarity while improving tone and grammar.

Now rewrite this message for someone who’s completely burned out: {original_text}. Focus on reducing pressure, showing compassion, and maintaining clarity.

Explain how {financial_topic} works in simple terms for someone aged {age_group}.

Explain the most common {scam_type} scams in simple terms for someone who isn't tech-savvy.