In many places, a wedding ceremony is not legally binding unless it includes the “declaration of intent” from the couple (e.g., “Do you, Gussie, take Madeline to be your lawfully wedded wife?” “I do.”) and the pronouncement from the officiant (e.g. "I now pronounce you..."If the couple has decided to compose their own vows, leave space in the script for their part of the ceremony. If you’re not sure how to begin, check around online for sample wedding scripts that match the tone and structure you are going for.