Thanos67

I am beginning to plan our next cruise which will be in a little over a year from now (March 2025). I KNOW that we will have 4 people going, but I don't know who that 4th person is. 2 rooms with 2 people each room So, should I: 1) book with a 4th person and just change the name later? or 2) book with 3 people now, and then add the 4th person later when we know who it is. Will one way vs the other have a lower/higher final cost?