You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you at this moment?

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

ASSISTANT: Sure, I am here to assist you with this.

USER: Thank you.

ASSISTANT: Can you please provide your name to check your reservation status?

USER: Sure, my name is Debra Wilson.

ASSISTANT: Wait a moment please.

USER: Ok, take your time.

ASSISTANT: Debra Wilson, there is no active reservation found under your name in our database.

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

ASSISTANT: Thank you for contacting us.