Parse this person name:

Olivier Dumont (1429-1480, flourished 1452-1469)
user
first_name: Olivier
last_name: Dumont
middle_names: []
temporal:
- start: 1429
  end: 1480
  type: life_span
- start: 1452
  end: 1469
  type: flourished
titles: []
extra_info: []
assistant