Parse this person name:

Étienne Perrier, 1763-1805, flourished 1786-1800
user
first_name: Étienne
last_name: Perrier
middle_names: []
temporal:
- start: 1763
  end: 1805
  type: life_span
- start: 1786
  end: 1800
  type: flourished
titles: []
extra_info: []
assistant