You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how may I aid you?

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

ASSISTANT: Sure, I am here to help you out. Please provide me your name to check your reservation.

USER: I am Benjamin Martin.

ASSISTANT: Sorry Martin, there is no reservation on your name.

USER: Thank you.

ASSISTANT: Thank you for reaching us.