Parse this person name:

Isaac Valencia (1749-1805, flourished 1774-1800)
user
first_name: Isaac
last_name: Valencia
middle_names: []
temporal:
- start: 1749
  end: 1805
  type: life_span
- start: 1774
  end: 1800
  type: flourished
titles: []
extra_info: []
assistant