You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how may I help you today?

USER: I need to cancel my recent reservation owing to an emergency.

ASSISTANT: Sure, I will help you.

USER: Ok.

ASSISTANT: May I know your good name please?

USER: My name is Justin Perez.

ASSISTANT: Please wait for a while.

USER: Sure.

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

USER: Thanks for your help.

ASSISTANT: Thanks for choosing us.