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

### Instruction:
What was the date of the poll from Survey USA that showed a lead margin smaller than 5.5?

### Inputs:
table_name: table, columns: ['Poll Source', 'Dates administered', 'Democrat: Mary Landrieu', 'Republican: John Kennedy', 'Lead Margin']

### Response:
SELECT Dates administered FROM table WHERE Lead Margin < 5.5 AND Poll Source = survey usa