Parse this person name:

Bertrand Hebert (1326-1375, flourished 1349-1370)
user
first_name: Bertrand
last_name: Hebert
middle_names: []
temporal:
- start: 1326
  end: 1375
  type: life_span
- start: 1349
  end: 1370
  type: flourished
titles: []
extra_info: []
assistant