You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

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

ASSISTANT: Sure, please provide your name.

USER: Sure, my name is Nicole Hernandez.

ASSISTANT: Let me check your ticket status in our database.

USER: Ok, take your time.

ASSISTANT: Sorry Nicole Hernandez, no reservation is available by your name.

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

ASSISTANT: Thank you for choosing us.