What's the name of the train to Madurai Junction?
CREATE TABLE "list_of_duronto_express_trains" (
  "service" real,
  "train_number" real,
  "train_name" text,
  "source" text,
  "departure" text,
  "destination" text,
  "arrival" text
);
SELECT "train_name" FROM "list_of_duronto_express_trains" WHERE "destination"='Madurai Junction';