When you receive the official wedding invitation, you will also get a reservation (RSVP) card. If "plus one" is an option on you're invite, you certainly can!
Cocktail dress / Dress to impress. No sweats, jeans, nor casual wear for example. Girls: treat yourself and buy that fancy dress you have been eyeing. Guys: tuxedo, or suit and tie are perfect options.
We get it, life happens. If you already responded "attending" on the RSVP but now cannot come, the sooner you let either of us or our event planner, Rachelle, know, the better. If it is truly last minute due to health issues, personal problems, or other, we will be saddened but understanding.