Parse this person name:

Casper Dirven, 1253-1297, flourished 1274-1292
user
first_name: Casper
last_name: Dirven
middle_names: []
temporal:
- start: 1253
  end: 1297
  type: life_span
- start: 1274
  end: 1292
  type: flourished
titles: []
extra_info: []
assistant