You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you?

USER: I am Katherine King want to change my reservation, can you help me with it?

ASSISTANT: Sure, I will help you. Please stand by.

USER: Ok.

ASSISTANT: Thanks for waiting,  I regret that there is no reservation found on your name.

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

ASSISTANT: Thanks for your kind approach.