What is the title when u.s. viewers (millions) is 3.97?
CREATE TABLE table_22363 (
    "No. in series" real,
    "No. in season" real,
    "Title" text,
    "Directed by" text,
    "Written by" text,
    "Original air date" text,
    "U.S. viewers (in millions)" text
)
SELECT "Title" FROM table_22363 WHERE "U.S. viewers (in millions)" = '3.97'
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 title when u.s. viewers (millions) is 3.97? ### Input: CREATE TABLE table_22363 (
    "No. in series" real,
    "No. in season" real,
    "Title" text,
    "Directed by" text,
    "Written by" text,
    "Original air date" text,
    "U.S. viewers (in millions)" text
) ### Response: SELECT "Title" FROM table_22363 WHERE "U.S. viewers (in millions)" = '3.97'