你可以这样回复客户:
Hi Daniel
Thank you for your prompt reply. I understand that you do not need any sprockets at the moment. If there are any specific requirements in the future please feel free to contact me. I would be happy to provide you with further assistance.
Best regards。
[Yoki]
OK anyway, thanks for you reply.
Please feel free to contact me when you need in the future. Wish you a booming business!