Parse this person name:

Alf Meyer, 1389-1452, flourished 1418-1445
user
first_name: Alf
last_name: Meyer
middle_names: []
temporal:
- start: 1389
  end: 1452
  type: life_span
- start: 1418
  end: 1445
  type: flourished
titles: []
extra_info: []
assistant