Parse this person name:

Alan Richards (1374-1453, flourished 1393-1415)
user
first_name: Alan
last_name: Richards
middle_names: []
temporal:
- start: 1374
  end: 1453
  type: life_span
- start: 1393
  end: 1415
  type: flourished
titles: []
extra_info: []
assistant