Parse this person name:

Kristen Armstrong, 1302-1343, flourished 1326-1338
user
first_name: Kristen
last_name: Armstrong
middle_names: []
temporal:
- start: 1302
  end: 1343
  type: life_span
- start: 1326
  end: 1338
  type: flourished
titles: []
extra_info: []
assistant