456, X Street, Y Avenue,
[Subject: Normally bold, summarizes the intention of the letter] -Optional-
Dear Jack Martinez
Once again we were glad that we employed you to organize our annual conference. We know that yyou always pay attention to the small details, details that ensure that a conference is remembered as a successful one. It is a great comfort to know that we do not have to worry about the unforeseen, as you can deal with anything that occurs. Once again many of the delegates commented on how impressed they were with the conference’s organization.
On behalf of the Flicker Corporation I would extend my thanks on another successful year.