what is the only airline that has filed for bankruptcy as a comment ?
CREATE TABLE table_204_215 (
    id number,
    "airline" text,
    "destination(s)" text,
    "aircraft scheduled" text,
    "service date(s)" text,
    "comments" text
)
SELECT "airline" FROM table_204_215 WHERE "comments" = 'filed for bankruptcy'
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: what is the only airline that has filed for bankruptcy as a comment ? ### Input: CREATE TABLE table_204_215 (
    id number,
    "airline" text,
    "destination(s)" text,
    "aircraft scheduled" text,
    "service date(s)" text,
    "comments" text
) ### Response: SELECT "airline" FROM table_204_215 WHERE "comments" = 'filed for bankruptcy'