Parse this person name:

Crystal Jackson (1269-1349, flourished 1297-1325)
user
first_name: Crystal
last_name: Jackson
middle_names: []
temporal:
- start: 1269
  end: 1349
  type: life_span
- start: 1297
  end: 1325
  type: flourished
titles: []
extra_info: []
assistant