You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: I need to change my existing reservation due to cyclone and heavy thunderstorm at my destination. Please, help me.

ASSISTANT: Sure, I will help you. I need your name to check the reservation, may I know your good name?

USER: My name is Betty Thomas.

ASSISTANT: Please wait for a moment.

USER: Ok.

ASSISTANT: Thanks for waiting, sorry to inform that there is no any reservation found on your name.

USER: No issue. Thanks for the information.

ASSISTANT: Thank you, have a nice day.