Parse this person name:

Justin Miller (1395-1459, flourished 1418-1440)
user
first_name: Justin
last_name: Miller
middle_names: []
temporal:
- start: 1395
  end: 1459
  type: life_span
- start: 1418
  end: 1440
  type: flourished
titles: []
extra_info: []
assistant