You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: My Interview was pre-planned at the last minute, will you please help me to change it as soon as possible?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: May I know your good name please?

USER: Yes, my name is Kenneth Green.

ASSISTANT: Please wait a minute.

USER: Sure, take your own time.

ASSISTANT: Sorry, there is no active reservation found on your name to change.

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

ASSISTANT: Thank you for choosing us.