请帮我写一封商务电子邮件，要求内容简洁，结构清晰，符合商务邮件礼仪，不得超过200字，以英语表达，使用正式语气，分成三段，每段不超过60字。
user
Subject: Proposal for Collaboration

Dear Mr. Smith,

I hope this email finds you well. I am writing to propose a potential collaboration between our companies. Our latest product, the XYZ Widget, aligns perfectly with your market.

We are confident that our innovative solution will enhance your offerings and lead to mutual growth. I would be delighted to discuss this further at your convenience.

Please let me know a suitable time for a meeting. I look forward to your positive response.

Best regards,  
John Doe  
Sales Manager  
ABC Corporation
assistant