Parse this person name:

William Miller, 1309-1376, flourished 1336-1352
user
first_name: William
last_name: Miller
middle_names: []
temporal:
- start: 1309
  end: 1376
  type: life_span
- start: 1336
  end: 1352
  type: flourished
titles: []
extra_info: []
assistant