Parse this person name:

Krystal Chavez, 1851-1931, flourished 1878-1895
user
first_name: Krystal
last_name: Chavez
middle_names: []
temporal:
- start: 1851
  end: 1931
  type: life_span
- start: 1878
  end: 1895
  type: flourished
titles: []
extra_info: []
assistant