You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I want to change my existing reservation, due to bad weather condition. Can you please help me?

ASSISTANT: Ok, I will be there to help you. Can I know your name?

USER: My name is Gary Wright.

ASSISTANT: Ok, please wait a minute.

USER: Sure, take your own time.

ASSISTANT: Gary, We are sorry to say but we didn't find your active reservation under your name in our records.

USER: That's ok, thank you for checking.

ASSISTANT: Most welcome.