Parse this person name:

Brianna Mcintyre (1748-1803, flourished 1778-1790)
user
first_name: Brianna
last_name: Mcintyre
middle_names: []
temporal:
- start: 1748
  end: 1803
  type: life_span
- start: 1778
  end: 1790
  type: flourished
titles: []
extra_info: []
assistant