Parse this person name:

Robert Pierce, 1788-1862, flourished 1806-1817
user
first_name: Robert
last_name: Pierce
middle_names: []
temporal:
- start: 1788
  end: 1862
  type: life_span
- start: 1806
  end: 1817
  type: flourished
titles: []
extra_info: []
assistant