Parse this person name:

Charles Berger-Chrétien, 1722-1781, flourished 1747-1763
user
first_name: Charles
last_name: Berger-Chrétien
middle_names: []
temporal:
- start: 1722
  end: 1781
  type: life_span
- start: 1747
  end: 1763
  type: flourished
titles: []
extra_info: []
assistant