Parse this person name:

Rachel Berg (1305-1361, flourished 1321-1342)
user
first_name: Rachel
last_name: Berg
middle_names: []
temporal:
- start: 1305
  end: 1361
  type: life_span
- start: 1321
  end: 1342
  type: flourished
titles: []
extra_info: []
assistant