Parse this person name:

Zachary Pittman, 1760-1821, flourished 1780-1799
user
first_name: Zachary
last_name: Pittman
middle_names: []
temporal:
- start: 1760
  end: 1821
  type: life_span
- start: 1780
  end: 1799
  type: flourished
titles: []
extra_info: []
assistant