Parse this person name:

Alain Roche (1904-1981, flourished 1921-1941)
user
first_name: Alain
last_name: Roche
middle_names: []
temporal:
- start: 1904
  end: 1981
  type: life_span
- start: 1921
  end: 1941
  type: flourished
titles: []
extra_info: []
assistant