Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_15430813_1 (original_air_date VARCHAR, no_in_season VARCHAR)
### Question:
How many original air dates were there for episode 17?
### Answer:
SELECT COUNT(original_air_date) FROM table_15430813_1 WHERE no_in_season = 17