Parse this person name:

Sebastian Díez, 1369-1409, flourished 1390-1404
user
first_name: Sebastian
last_name: Díez
middle_names: []
temporal:
- start: 1369
  end: 1409
  type: life_span
- start: 1390
  end: 1404
  type: flourished
titles: []
extra_info: []
assistant