Parse this person name:

Justin Alvarez (1898-1943, flourished 1924-1938)
user
first_name: Justin
last_name: Alvarez
middle_names: []
temporal:
- start: 1898
  end: 1943
  type: life_span
- start: 1924
  end: 1938
  type: flourished
titles: []
extra_info: []
assistant