Miroslav Lajcak (C), President of the 72nd session of the United Nations General Assembly (UNGA), chairs an informal interactive dialogue with candidates of president of the 73rd session of the UNGA at the UN headquarters in New York, on May 4, 2018. Two candidates, respectively from Central and South America, will contest in the June 5 president election of the 73rd United Nations General Assembly. (Xinhua/Li Muzi)