I'm getting married September 10th and set August 5th as my rsvp date for my 80 guests. Most of my guests already knew the date and were making travel plans prior to me sending invites. I chose an earlier date bc the venue is a beautiful old house with a lot of space but I need plenty of time to work with the caterer on seating plans, where to set up DJ, etc. Two separate couples (4 people total) have not yet rsvp'd even though I confirmed with both they received the invite and they both said they are checking with their significant others and would get back to me soon. Deadline is a week away and I wouldn't be upset if they don't attend. I would really hate to nudge them more than once already, if I don't hear back is it ok to assume they aren't attending and if I do hear from them a week or to later is it rude to say I'm sorry but bc of the venue and caterer we can't make any adjustments? What have people done in this situation.