You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am James White. I want to change my reservation, due to heavy rainfall in New York.

ASSISTANT: Sure, please wait for a moment to check your reservation details.

USER: Ok.

ASSISTANT: Sorry, there is no reservation found by your name.

USER: That's ok, thank you for your information.

ASSISTANT: Thank you and have a nice day.