Parse this person name:

Juan Mielcarek-Hettner (1705-1759, flourished 1735-1749)
user
first_name: Juan
last_name: Mielcarek-Hettner
middle_names: []
temporal:
- start: 1705
  end: 1759
  type: life_span
- start: 1735
  end: 1749
  type: flourished
titles: []
extra_info: []
assistant