You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you today?

USER: Can you please assist me to change my active reservation as my meeting was changed?

ASSISTANT: Ok, I am here to help you with that. May I know your good name?

USER: Kimberly Davis.

ASSISTANT: Please wait for a minute.

USER: Ok.

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

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us.