You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Sharon Nelson.

ASSISTANT: How can I assist you at this moment?

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

ASSISTANT: Sure, I am here to help you with that.

USER: Thank you.

ASSISTANT: Please wait a moment and I will check your reservation status.

USER: Sure.

ASSISTANT: Sorry Sharon Nelson, no reservation has found under your name to cancel.

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

ASSISTANT: Thank you for choosing us, have a great day.