Parse this person name:

Elfi Walter-Hauffer, 1336-1380, flourished 1351-1364
user
first_name: Elfi
last_name: Walter-Hauffer
middle_names: []
temporal:
- start: 1336
  end: 1380
  type: life_span
- start: 1351
  end: 1364
  type: flourished
titles: []
extra_info: []
assistant