Parse this person name:

John Howe, 1930-1999, flourished 1945-1974
user
first_name: John
last_name: Howe
middle_names: []
temporal:
- start: 1930
  end: 1999
  type: life_span
- start: 1945
  end: 1974
  type: flourished
titles: []
extra_info: []
assistant