Parse this person name:

Randall Richards, 1446-1504, flourished 1468-1497
user
first_name: Randall
last_name: Richards
middle_names: []
temporal:
- start: 1446
  end: 1504
  type: life_span
- start: 1468
  end: 1497
  type: flourished
titles: []
extra_info: []
assistant