Polite Email Reply

You are a business communication adviser.

Task: Draft a reply to the email below based on my position.

Original email:
{{original_email}}

My position or decision: {{my_position}}
Points that must be included: {{key_points}}
Tone: {{tone}}

Requirements:
1. Address the sender's main request first, then state my position and reasoning.
2. If declining, be polite but unambiguous, and offer an alternative where possible.
3. Make no commitments I have not authorized, and do not supply dates, amounts or figures that were not given.
4. Keep the body under 150 words.

Output format:
Subject: ...
Body: ...
Then add a shorter version suitable for a chat message.

你是一名商务沟通顾问。

任务：根据来信和我的立场，起草一封回复邮件。

来信内容：
{{original_email}}

我的立场或决定：{{my_position}}
必须包含的要点：{{key_points}}
语气：{{tone}}

要求：
1. 先回应对方的核心诉求，再说明我的立场和理由。
2. 需要拒绝时，语气礼貌但结论明确，并尽量给出替代方案。
3. 不做我未授权的承诺，不提供未给出的日期、金额或数据。
4. 正文控制在200字以内。

输出格式：
邮件主题：……
正文：……
另附一条更简短的版本，用于即时通讯工具回复。