Parse this person name:

John Bell, 1781-1824, flourished 1808-1819
user
first_name: John
last_name: Bell
middle_names: []
temporal:
- start: 1781
  end: 1824
  type: life_span
- start: 1808
  end: 1819
  type: flourished
titles: []
extra_info: []
assistant