Personally I’d focus on the purpose of the form. It’s to allow someone other than you, who wasn’t listed on the original reservation, to check in.Could it also mean if you are leaving halfway through for example would you select I do not intend to stay the full length of the reservation. We shall see what happens.
If I had a week reserved and my guest arrived with me, but I was checking out early, I wouldn’t use the form. I’d just make sure their name was added on the room folio at check in.