Parse this person name:

Casper Timmermans, 1347-1408, flourished 1377-1388
user
first_name: Casper
last_name: Timmermans
middle_names: []
temporal:
- start: 1347
  end: 1408
  type: life_span
- start: 1377
  end: 1388
  type: flourished
titles: []
extra_info: []
assistant