Parse this person name:

Laetitia Imbert (1389-1444, flourished 1417-1436)
user
first_name: Laetitia
last_name: Imbert
middle_names: []
temporal:
- start: 1389
  end: 1444
  type: life_span
- start: 1417
  end: 1436
  type: flourished
titles: []
extra_info: []
assistant