Parse this person name:

Isaac Guillaume, 1419-1487, flourished 1437-1449
user
first_name: Isaac
last_name: Guillaume
middle_names: []
temporal:
- start: 1419
  end: 1487
  type: life_span
- start: 1437
  end: 1449
  type: flourished
titles: []
extra_info: []
assistant