Ysshina
Shanghai,
China
[Subject: Normally bold, summarizes the intention of the letter] -Optional-
Dear Ysshina,
I am extremely honored by your invitation requesting me to put in my services as an honorary member for your fund raising endeavor. I am very much thankful for the assurance placed on me. However, I am afraid my full fledged participation will not be possible owing to some restraints. But, I shall try my level best to put in as much service as is possible to further your noble cause.
I wish that this endeavor is largely triumphant and your objectives are met. Owing to the backing of your strong team, I am assured that this will definitely be possible.
Sincerely,
Kerh