Letter type informal reply
» uses a single sentence presentation/skips end line punctuation
» uses the simple present tense
» answers the questions: who, whom, when, where, what time, for what
» includes name and address of the sender and the receiver
» avoids adding signatures
Layout mostly pertains to the following —
» name of host(s)
» informal expression
» purpose of invitation
» date & time of event
» mention of gratitude for the invitation
» clear statement of acceptance or rejection of invitation
» mention of any other details as required by the prompt