Parse this person name:

Christopher Gardner, 1368-1439, flourished 1385-1413
user
first_name: Christopher
last_name: Gardner
middle_names: []
temporal:
- start: 1368
  end: 1439
  type: life_span
- start: 1385
  end: 1413
  type: flourished
titles: []
extra_info: []
assistant