Parse this person name:

Juliette Dumont-Joubert, 1249-1323, flourished 1277-1294
user
first_name: Juliette
last_name: Dumont-Joubert
middle_names: []
temporal:
- start: 1249
  end: 1323
  type: life_span
- start: 1277
  end: 1294
  type: flourished
titles: []
extra_info: []
assistant