Parse this person name:

Kai Keltenie (1276-1338, flourished 1305-1319)
user
first_name: Kai
last_name: Keltenie
middle_names: []
temporal:
- start: 1276
  end: 1338
  type: life_span
- start: 1305
  end: 1319
  type: flourished
titles: []
extra_info: []
assistant