Parse this person name:

Sami Kolster, 1434-1499, flourished 1450-1477
user
first_name: Sami
last_name: Kolster
middle_names: []
temporal:
- start: 1434
  end: 1499
  type: life_span
- start: 1450
  end: 1477
  type: flourished
titles: []
extra_info: []
assistant