Parse this person name:

Alejo Cuesta, 1819-1879, flourished 1845-1861
user
first_name: Alejo
last_name: Cuesta
middle_names: []
temporal:
- start: 1819
  end: 1879
  type: life_span
- start: 1845
  end: 1861
  type: flourished
titles: []
extra_info: []
assistant