Parse this person name:

Raymond Mitchell, 1200-1258, flourished 1223-1245
user
first_name: Raymond
last_name: Mitchell
middle_names: []
temporal:
- start: 1200
  end: 1258
  type: life_span
- start: 1223
  end: 1245
  type: flourished
titles: []
extra_info: []
assistant