Parse this person name:

William Roberts (1354-1401, flourished 1371-1387)
user
first_name: William
last_name: Roberts
middle_names: []
temporal:
- start: 1354
  end: 1401
  type: life_span
- start: 1371
  end: 1387
  type: flourished
titles: []
extra_info: []
assistant