Parse this person name:

Sara Rivera (1788-1846, flourished 1803-1818)
user
first_name: Sara
last_name: Rivera
middle_names: []
temporal:
- start: 1788
  end: 1846
  type: life_span
- start: 1803
  end: 1818
  type: flourished
titles: []
extra_info: []
assistant