You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

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

ASSISTANT: Ok, may I know your name?

USER: Ok, I am Gregory Young.

ASSISTANT: Sorry, no reservation found on your name to cxancel.

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

ASSISTANT: Thank you for reaching us.