You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: Owing an emergency, I want to cancel my recent reservation. Can you please help me out?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: May I know your good name please?

USER: My name is Michael Miller.

ASSISTANT: Please wait a minute.

USER: Sure, I will wait for your information.

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

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for opting us.