I accept your kind invitation to speak to the graduating class. Thanks so much for the invite, count me in, so I'll see you at the party, is there anything that I can carry?Mr and Mrs Smith accept with pleasure your kind invitation for Saturday, 7th July. Dear Mr and Mrs Morrison,. I am delighted to accept your invitation to speak at your annual conference on Saturday, March 15 at pm at the Springfield Convention Center. "I am very honored to receive an invitation and I will be attending the summit in February. Thank you very much. A contract acceptance letter is a formal letter that confirms that you have accepted the terms and conditions. Here's what you should know. We shall be delighted to accept your kind invitation for to-morrow.