Parse this person name:

Bernard Dumont (1805-1851, flourished 1835-1846)
user
first_name: Bernard
last_name: Dumont
middle_names: []
temporal:
- start: 1805
  end: 1851
  type: life_span
- start: 1835
  end: 1846
  type: flourished
titles: []
extra_info: []
assistant