Parse this person name:

Bernadette Morvan, 1804-1857, flourished 1823-1848
user
first_name: Bernadette
last_name: Morvan
middle_names: []
temporal:
- start: 1804
  end: 1857
  type: life_span
- start: 1823
  end: 1848
  type: flourished
titles: []
extra_info: []
assistant