Parse this person name:

Sébastien Blanchard, 1696-1758, flourished 1722-1743
user
first_name: Sébastien
last_name: Blanchard
middle_names: []
temporal:
- start: 1696
  end: 1758
  type: life_span
- start: 1722
  end: 1743
  type: flourished
titles: []
extra_info: []
assistant