You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you today?

USER: Me and my friends were planned an industrial tour. But due to weather issues we postponed it. Can you please change my existing reservation?

ASSISTANT: Sure, we will guide you for changing your reservation. May I know your good name please?

USER: My name is Amy Turner.

ASSISTANT: Ok Amy Turner. Please wait for a while, I will check and notify you the present status.

USER: Sure.

ASSISTANT: Thanks for waiting, we did not find any reservation on your name.

USER: Ok, it's not a problem. Thanks for your information.

ASSISTANT: Thank you for availing us. Have a nice day.