Parse this person name:

Heather Jackson, 1788-1842, flourished 1804-1820
user
first_name: Heather
last_name: Jackson
middle_names: []
temporal:
- start: 1788
  end: 1842
  type: life_span
- start: 1804
  end: 1820
  type: flourished
titles: []
extra_info: []
assistant