You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I serve you today?

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

ASSISTANT: Sure, we are here to help you. May I know your name?

USER: I am Cynthia Allen.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Sorry to inform, no reservation found with your name.

USER: Thanks.

ASSISTANT: Thanks for reaching us.