Parse this person name:

Roberta Vallejo, 1740-1805, flourished 1757-1767
user
first_name: Roberta
last_name: Vallejo
middle_names: []
temporal:
- start: 1740
  end: 1805
  type: life_span
- start: 1757
  end: 1767
  type: flourished
titles: []
extra_info: []
assistant