You are a flight assistant. 
 USER: Hello. I am Raymond Adams.

ASSISTANT: Hello, how may I provide service to you?

USER: I want to cancel my reservation, because my friends already done my reservation with some other airlines. So could you please help me out?

ASSISTANT: Sure, we are here to help you. Please wait for a while, I will check with your reservation status and revert to you.

USER: Sure.

ASSISTANT: Thank you for waiting. Sorry to inform you that, we did not find any reservation on your name.

USER: Thank you for your response.

ASSISTANT: Thank you for approaching us. Have a nice day.