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

### Instruction:
When was Jenny Gleason the champion of the Northeast Delta Dental International?

### Inputs:
table_name: table, columns: ['Year', 'Dates', 'Champion', 'Country', 'Score', 'Tournament location', 'Purse ($)', 'Winners share ($)']

### Response:
SELECT Dates FROM table WHERE Champion = Jenny Gleason