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

### Instruction:
Name the original air date for barnaby southcomb for charlie martin

### Inputs:
table_name: table, columns: ['No. overall', 'No. in series', 'Title', 'Director', 'Writer', 'Original air date', 'Production code']

### Response:
SELECT Original air date FROM table WHERE Director = Barnaby Southcomb AND Writer = Charlie Martin