Parse this person name:

Kelsey Oliver, 1294-1349, flourished 1312-1332
user
first_name: Kelsey
last_name: Oliver
middle_names: []
temporal:
- start: 1294
  end: 1349
  type: life_span
- start: 1312
  end: 1332
  type: flourished
titles: []
extra_info: []
assistant