You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I be your helping hand today?

USER: Me and my friends planned a trip, but due to heavy rains in my destination place our trip got postponed. Can you help me to change it?

ASSISTANT: Sure, I am here to aid you.

USER: Ok.

ASSISTANT: May I know your name?

USER: Sure, my name is Kenneth Thompson.

ASSISTANT: Ok, please wait for a few minutes.

USER: Sure.

ASSISTANT: Thank you for your time, we are sorry to inform you that we did not find any reservation on your name.

USER: Not an issue, thanks for your help.

ASSISTANT: Thank you for approaching us.