Parse this person name:

David Johnson, 1705-1767, flourished 1720-1735
user
first_name: David
last_name: Johnson
middle_names: []
temporal:
- start: 1705
  end: 1767
  type: life_span
- start: 1720
  end: 1735
  type: flourished
titles: []
extra_info: []
assistant