Parse this person name:

Sonja Conradi, 1818-1861, flourished 1845-1855
user
first_name: Sonja
last_name: Conradi
middle_names: []
temporal:
- start: 1818
  end: 1861
  type: life_span
- start: 1845
  end: 1855
  type: flourished
titles: []
extra_info: []
assistant