Parse this person name:

David West, 1397-1446, flourished 1414-1439
user
first_name: David
last_name: West
middle_names: []
temporal:
- start: 1397
  end: 1446
  type: life_span
- start: 1414
  end: 1439
  type: flourished
titles: []
extra_info: []
assistant