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

### Instruction:
What is the Original U.S. air-date for the Original Canadian air-date of december 9, 2007?

### Inputs:
table_name: table, columns: ['Title', 'Original story author', 'Director', 'Original U.S. air-date', 'Original Canadian air-date']

### Response:
SELECT Original U.S. air-date FROM table WHERE Original Canadian air-date = december 9, 2007