You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello. How may I help you?

USER: Please cancel my recent reservation owing to an emergency.

ASSISTANT: Sure, I can help you. May I know your name for checking purpose?

USER: I am Jerry Hill.

ASSISTANT: Please give me a moment.

USER: Sure.

ASSISTANT: I could not found any reservation done on the name in our previous booking list.

USER: Thanks for your help.

ASSISTANT: Thank you for reaching us, have a nice day.