| task_id | employee_id | start_time | end_time | | ------- | ----------- | ------------------- | ------------------- | | 1 | 1001 | 2023-05-01 08:00:00 | 2023-05-01 09:00:00 | | 2 | 1001 | 2023-05-01 08:30:00 | 2023-05-01 10:30:00 | | 3 | 1001 | 2023-05-01 11:00:00 | 2023-05-01 12:00:00 | | 7 | 1001 | 2023-05-01 13:00:00 | 2023-05-01 15:30:00 | | 4 | 1002 | 2023-05-01 09:00:00 | 2023-05-01 10:00:00 | | 5 | 1002 | 2023-05-01 09:30:00 | 2023-05-01 11:30:00 | | 6 | 1003 | 2023-05-01 14:00:00 | 2023-05-01 16:00:00 |