Parse this person name:

Francis Seifert (1703-1780, flourished 1724-1753)
user
first_name: Francis
last_name: Seifert
middle_names: []
temporal:
- start: 1703
  end: 1780
  type: life_span
- start: 1724
  end: 1753
  type: flourished
titles: []
extra_info: []
assistant