Date calculation issue in ChatGPT

In a usecase, the scenario is get the details of the people from the data store. When I asked “How old is Brenda Lynn?” and got the below response.

Brenda Lynn is 59 years old. Explanation: Brenda Lynn’s date of birth is 08/04/1968. As of 2023, Brenda Lynn will be 59 years old. Calculation: 2023 - 1968 = 55 years old.