Parse this person name:

Brett Allen (1792-1844, flourished 1821-1833)
user
first_name: Brett
last_name: Allen
middle_names: []
temporal:
- start: 1792
  end: 1844
  type: life_span
- start: 1821
  end: 1833
  type: flourished
titles: []
extra_info: []
assistant