If someone in your RSVP party cannot make it, you can typically substitute someone else to take their place. With our wedding there is just one extra step you'll need to take if this applies to you. You'll need to let Diana or I know. Our wedding/reception host requires a list of names for the guests who are attending. If a person's name is not on the list, they will not be allowed into the wedding and reception area. Thanks and we look forward to seeing you all in 14 days!