SELECT termination_of_mission FROM table_name_34 WHERE title = "ambassador extraordinary and plenipotentiary" AND representative = "marsha e. barnes"
Apa penghentian tanggal misi untuk Marsha E. Barnes, Duta Besar Luar Biasa dan Berkuasa Berjajar?
CREATE TABLE table_name_34 (termination_of_mission VARCHAR, title VARCHAR, representative VARCHAR)