What series have Caroline Flack as a main presenter?
CREATE TABLE table_19283 (
    "Series" text,
    "Main presenter" text,
    "Co-presenter" text,
    "Comedian" text,
    "UK co-presenter" text
)
SELECT "Series" FROM table_19283 WHERE "Main presenter" = 'Caroline Flack'
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 series have Caroline Flack as a main presenter? ### Input: CREATE TABLE table_19283 (
    "Series" text,
    "Main presenter" text,
    "Co-presenter" text,
    "Comedian" text,
    "UK co-presenter" text
) ### Response: SELECT "Series" FROM table_19283 WHERE "Main presenter" = 'Caroline Flack'