You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How exactly I can serve you the best today?

USER: Due to sudden Demise of my grandmother, I want to cancel my recent reservation. Will you help me in cancellation?

ASSISTANT: Sure, I am here to help you. May I know your good name?

USER: My good name is Shirley Mitchell.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Sorry, we found no reservation on your given name.

USER: Ok, not an issue. Thank you.

ASSISTANT: Thank you for reaching us.