You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you out?

USER: I need to change the destination airport code because I have given a wrong airport code while booking. Can you please help me to change my reservation details?

ASSISTANT: Sure, I will help you in changing the reservation. May I know your name please?

USER: Thank you for accepting my request. I am Benjamin Evans.

ASSISTANT: Sorry, there are no reservations found.

USER: It's ok, not a problem with that. Anyhow thanks a lot for checking my ticket status.

ASSISTANT: Thank you for reaching us.

USER: Most welcome.