Parse this person name:

Justin Hamilton (1421-1461, flourished 1438-1455)
user
first_name: Justin
last_name: Hamilton
middle_names: []
temporal:
- start: 1421
  end: 1461
  type: life_span
- start: 1438
  end: 1455
  type: flourished
titles: []
extra_info: []
assistant