Parse this person name:

Ryan Kallen, 1348-1388, flourished 1370-1383
user
first_name: Ryan
last_name: Kallen
middle_names: []
temporal:
- start: 1348
  end: 1388
  type: life_span
- start: 1370
  end: 1383
  type: flourished
titles: []
extra_info: []
assistant