You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

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

ASSISTANT: Sure, I will help you in this.

USER: Thank you.

ASSISTANT: May I know your name please for further process?

USER: Sure, my name is Stephen Mitchell.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Sorry Mitchell, there is no reservation found as per your name to cancel your reservation.

USER: Ok, no problem.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your information.