Parse this person name:

Helen Nichols, 1606-1648, flourished 1636-1643
user
first_name: Helen
last_name: Nichols
middle_names: []
temporal:
- start: 1606
  end: 1648
  type: life_span
- start: 1636
  end: 1643
  type: flourished
titles: []
extra_info: []
assistant