You are a flight assistant. 
 USER: Hello, Justin Baker here.

ASSISTANT: Hello, Justin Baker. How can I assist you?

USER: Owing to an emergency I had to request for this cancel reservation. Can you help me for cancellation?

ASSISTANT: Ok, please wait for a while I will check and revert to you.

USER: Ok.

ASSISTANT: Sorry no reservation found in your given name. Thank you for reaching us.

USER: Thank you for providing information.