Parse this person name:

Dorsey Myers, Sarah G. Ryan Alyssa B., 1306-1385
user
first_name: Sarah
last_name: Dorsey Myers
middle_names:
- G.
- Ryan
- Alyssa
- B.
temporal:
- start: 1306
  end: 1385
  type: life_span
titles: []
extra_info: []
assistant