CREATE TABLE table_80243 ("Representative" TEXT, "Title" TEXT, "Presentation of Credentials" TEXT, "Termination of Mission" TEXT, "Appointed by" TEXT)

Which representative was the Ambassador Extraordinary and Plenipotentiary and had a Termination of Mission date September 20, 1996?
SELECT "Representative" FROM table_80243 WHERE "Title" = 'ambassador extraordinary and plenipotentiary' AND "Termination of Mission" = 'september 20, 1996'
SELECT "Representative" FROM "table_80243" WHERE "Termination of Mission" = 'september 20, 1996' AND "Title" = 'ambassador extraordinary and plenipotentiary'