Parse this person name:

Sébastien Picard (1430-1475, flourished 1454-1470)
user
first_name: Sébastien
last_name: Picard
middle_names: []
temporal:
- start: 1430
  end: 1475
  type: life_span
- start: 1454
  end: 1470
  type: flourished
titles: []
extra_info: []
assistant