You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Sharon Wilson.

ASSISTANT: How can I assist you today?

USER: Owing to an emergency, I want to cancel my recent reservation. Can you please help me out?

ASSISTANT: Sure, I am here to help you to cancel your reservation.

USER: Thank you.

ASSISTANT: Sorry, no reservation found on your name.

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

ASSISTANT: Welcome.