Parse this person name:

Margaret Vasseur, 1403-1465, flourished 1433-1460
user
first_name: Margaret
last_name: Vasseur
middle_names: []
temporal:
- start: 1403
  end: 1465
  type: life_span
- start: 1433
  end: 1460
  type: flourished
titles: []
extra_info: []
assistant