Question: Rosemary Anne DiCarlo served as acting United States Ambassador to the United Nations following the resignation of an American public servant who was confirmed as UN ambassador by the U.S. Senate by unanimous consent on what date? 
Sentence (from "Susan Rice"): Susan Elizabeth Rice (born November 17, 1964) is an American public servant who served as the 24th United States National Security Advisor from 2013 to 2017.
Relevant evidence: Yes