You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I guide you?

USER: My name is Kevin Brown. I want to change my reservation due to heavy cyclone in my location. Can you help me?

ASSISTANT: Sure, please hold on for a moment, let me check.

USER: Ok, carry on.

ASSISTANT: I am sorry, there are no reservations available with your name.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thank you, have a good day.