Parse this person name:

Sébastien Pineau, 1256-1307, flourished 1279-1302
user
first_name: Sébastien
last_name: Pineau
middle_names: []
temporal:
- start: 1256
  end: 1307
  type: life_span
- start: 1279
  end: 1302
  type: flourished
titles: []
extra_info: []
assistant