Parse this person name:

Casper Bos (1309-1371, flourished 1324-1354)
user
first_name: Casper
last_name: Bos
middle_names: []
temporal:
- start: 1309
  end: 1371
  type: life_span
- start: 1324
  end: 1354
  type: flourished
titles: []
extra_info: []
assistant