Parse this person name:

Robert Delannoy (1840-1885, flourished 1868-1880)
user
first_name: Robert
last_name: Delannoy
middle_names: []
temporal:
- start: 1840
  end: 1885
  type: life_span
- start: 1868
  end: 1880
  type: flourished
titles: []
extra_info: []
assistant