Parse this person name:

Waltraud Stadelmann, 1778-1838, flourished 1798-1819
user
first_name: Waltraud
last_name: Stadelmann
middle_names: []
temporal:
- start: 1778
  end: 1838
  type: life_span
- start: 1798
  end: 1819
  type: flourished
titles: []
extra_info: []
assistant