RSVP to a Camping invite

Banana: "I am tentatively committing and immediately questioning if we can just do one night instead of two? Do we have to go at all? Can't we go outlet shopping on a Saturday instead - that's pretty savage. What are we going to eat? Who has the supplies? Please tell me I've whined my way out of an invite. If I haven't, I'll try harder." - Holiday Inn Banana