You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today?

USER: Please help me out in changing my recent reservation.

ASSISTANT: Sure, we are perky to help you. Can you share your good name?

USER: Jerry Lee.

ASSISTANT: Please be on hold.

USER: Ok.

ASSISTANT: Sorry, there is no reservation found on your name in our database to change it.

USER: That's ok, thank you.

ASSISTANT: Thank you.