Name the round 16 for did not advance and light flyweight
CREATE TABLE "table1_17417383_6" (
  "athlete" text,
  "event" text,
  "round_of_32" text,
  "round_of_16" text,
  "quarterfinals" text,
  "semifinals" text
);
SELECT "round_of_16" FROM "table1_17417383_6" WHERE "quarterfinals"='Did not advance' AND "event"='Light flyweight';