A: Here's one of the more traditional examples that you can alter to suit your needs:
at the marriage of Miss Colleen Marie Crane
to Mr. Ryan Michael Carter
Saturday, the twenty-third of May
at eleven o' clock
Saint Cecelia's Church
Remember that the words "honour of your presence" are only used when inviting guests to a religious ceremony in a house of worship. For a secular (nonreligious) service, use the words "request the pleasure of your company" instead.