Parse this person name:

Jason Keith, 1778-1841, flourished 1800-1823
user
first_name: Jason
last_name: Keith
middle_names: []
temporal:
- start: 1778
  end: 1841
  type: life_span
- start: 1800
  end: 1823
  type: flourished
titles: []
extra_info: []
assistant