Parse this person name:

Leslie Johnson, 1706-1785, flourished 1728-1750
user
first_name: Leslie
last_name: Johnson
middle_names: []
temporal:
- start: 1706
  end: 1785
  type: life_span
- start: 1728
  end: 1750
  type: flourished
titles: []
extra_info: []
assistant