Parse this person name:

Alex Dixon (1244-1309, flourished 1270-1294)
user
first_name: Alex
last_name: Dixon
middle_names: []
temporal:
- start: 1244
  end: 1309
  type: life_span
- start: 1270
  end: 1294
  type: flourished
titles: []
extra_info: []
assistant