Parse this person name:

Christopher Lucas, 1775-1841, flourished 1805-1818
user
first_name: Christopher
last_name: Lucas
middle_names: []
temporal:
- start: 1775
  end: 1841
  type: life_span
- start: 1805
  end: 1818
  type: flourished
titles: []
extra_info: []
assistant