Hi, I need help. We just got RSVPs back. We did not put "and guest" on invites, just individual names, but a lot come back with a "2" and no name on the RSVP card of who the "plus one" is. We figured out that enough people said no, that the plus ones were ok and won't go over our "number." I have asked several of our guests the name of the Plus one so I can add it to the seating plan and I just get a first name, or "guest is fine." I don' t want to write "guest (insert invited persons last name)." Even though the plus one was not initially invited, we want them to feel welcome. I have asked a few times for the names and haven't received anything back. So what is the etiquette if you don't know the plus one's name on the seating plan, and how do you keep asking (for the 5th time) who it is?