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

### Instruction:
What is the episode number of the episode that originally aired on February 4, 2008?

### Inputs:
table_name: table, columns: ['Production no.', 'Episode no.', 'Original Airdate', 'Episode Title', 'Host']

### Response:
SELECT Episode no. FROM table WHERE Original Airdate = february 4, 2008