Parse this person name:

Helen Dippel (1654-1729, flourished 1681-1709)
user
first_name: Helen
last_name: Dippel
middle_names: []
temporal:
- start: 1654
  end: 1729
  type: life_span
- start: 1681
  end: 1709
  type: flourished
titles: []
extra_info: []
assistant