Name the date for l 28 15
CREATE TABLE table_26615 (
    "Week" real,
    "Date" text,
    "Opponent" text,
    "Location" text,
    "Final Score" text,
    "Attendance" real,
    "Record" text
)
SELECT "Date" FROM table_26615 WHERE "Final Score" = 'L 28–15'
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: Name the date for l 28 15 ### Input: CREATE TABLE table_26615 (
    "Week" real,
    "Date" text,
    "Opponent" text,
    "Location" text,
    "Final Score" text,
    "Attendance" real,
    "Record" text
) ### Response: SELECT "Date" FROM table_26615 WHERE "Final Score" = 'L 28–15'