Parse this person name:

Ariel Miller, 1224-1272, flourished 1242-1266
user
first_name: Ariel
last_name: Miller
middle_names: []
temporal:
- start: 1224
  end: 1272
  type: life_span
- start: 1242
  end: 1266
  type: flourished
titles: []
extra_info: []
assistant