You are a flight assistant. 
 USER: Hello, myself Jason Parker.

ASSISTANT: Hello. How may I aid you today?

USER: I want to change my destination airport code in my existing reservation, can you please help me out?

ASSISTANT: Sure, please wait a moment.

USER: Ok, take your time.

ASSISTANT: Sorry, there are no active reservation found on your name in our database to proceed.

USER: It's ok, thank you for the information.

ASSISTANT: Thank you for reaching our service.