This letter has been written by a manager of a company who is confirming his attendance to a launch party for a venture that a company is taking on, in this case, it being a magazine. He also takes the opportunity in the letter to wish the new venture every success, as well as making it his formal reply to invitation.
7th November 2006
123 Harrison St
Dear Mr Swallow,
I am writing to you to confirm receipt of your invitation letter for the launch of your new magazine.
I am pleased to be able to inform you that I will indeed be able to attend the launch party and am very much looking forward to the event.
Let me take this chance to congratulate you on your new venture, and wish you every success with the magazine in the future. I hope that it will prove to be a very prosperous and lucrative venture for you.
I look forward to meeting you at the launch on November the 15th.
Please accept this as my official response that I will be attending the event.