Parse this person name:

Alexei Mies (1806-1870, flourished 1824-1837)
user
first_name: Alexei
last_name: Mies
middle_names: []
temporal:
- start: 1806
  end: 1870
  type: life_span
- start: 1824
  end: 1837
  type: flourished
titles: []
extra_info: []
assistant