Parse this person name:

Bernard Perrier, 1839-1887, flourished 1855-1869
user
first_name: Bernard
last_name: Perrier
middle_names: []
temporal:
- start: 1839
  end: 1887
  type: life_span
- start: 1855
  end: 1869
  type: flourished
titles: []
extra_info: []
assistant