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

### Instruction:
When "the charlotte letter" is the title what is the air date?

### Inputs:
table_name: table, columns: ['Series #', 'Season #', 'Title', 'Director', 'Writer(s)', 'Original air date']

### Response:
SELECT Original air date FROM table WHERE Title = "The Charlotte Letter"