Parse this person name:

Richard Boulanger (1347-1410, flourished 1370-1396)
user
first_name: Richard
last_name: Boulanger
middle_names: []
temporal:
- start: 1347
  end: 1410
  type: life_span
- start: 1370
  end: 1396
  type: flourished
titles: []
extra_info: []
assistant