Dearsir/madam:

I’mdelightedyouhaveacceptedourinvitationtospeakattheConferenceinon.

Asweagreed,you’llbespeakingonthetopicfromto.Therewillbeanadditionalminutesforquestions.

Wouldyoupleasetellmewhatkindofaudio-visualequipmentyou’llneed.Ifyoucouldletmeknowyourspecificrequirementsby,I’llhaveplentyoftimetomakesurethatthehotelprovidesyouwithwhatyouneed.

Thankyouagainforagreeingtospeak.Ilookforwardtohearingfromyou.

Sincerelyyours,