when was the next coach appointed after niger tornadoes fired their coach?
CREATE TABLE table_30339 (
    "Team" text,
    "Outgoing manager" text,
    "Manner of departure" text,
    "Date of vacancy" text,
    "Incoming manager" text,
    "Date of appointment" text
)
SELECT "Date of appointment" FROM table_30339 WHERE "Manner of departure" = 'fired' AND "Team" = 'Niger Tornadoes'
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: when was the next coach appointed after niger tornadoes fired their coach? ### Input: CREATE TABLE table_30339 (
    "Team" text,
    "Outgoing manager" text,
    "Manner of departure" text,
    "Date of vacancy" text,
    "Incoming manager" text,
    "Date of appointment" text
) ### Response: SELECT "Date of appointment" FROM table_30339 WHERE "Manner of departure" = 'fired' AND "Team" = 'Niger Tornadoes'