What city had tickets available since March 28, 2008 and went on sale on September 4, 2009?
CREATE TABLE "tour_dates" (
  "date" text,
  "city" text,
  "country" text,
  "venue" text,
  "tickets_available_since" text,
  "attendance" real,
  "comment" text
);
SELECT "city" FROM "tour_dates" WHERE "tickets_available_since"='march 28, 2008' AND "date"='september 4, 2009';