You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Stephanie King.

ASSISTANT: How can I help you?

USER: I want to change my reservation, due to heavy rainfall in New York, can you help me?

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.