Parse this person name:

John Chavez, 1584-1640, flourished 1602-1618
user
first_name: John
last_name: Chavez
middle_names: []
temporal:
- start: 1584
  end: 1640
  type: life_span
- start: 1602
  end: 1618
  type: flourished
titles: []
extra_info: []
assistant