Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
What is the airdate when the story is listed as hugh leonard?

### Inputs:
table_name: table, columns: ['Episode', 'Title', 'Story', 'Adapted by', 'Director', 'Airdate', 'Exists?']

### Response:
SELECT Airdate FROM table WHERE Story = Hugh Leonard