You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, may I know how best I can help you today?

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

ASSISTANT: Sure, we are euphoric to help you. May I know your name please?

USER: Sarah Lewis is my name.

ASSISTANT: Ok, please standby.

USER: Sure.

ASSISTANT: Thanks for your time, no reservation was found on your name.

USER: Thank you.

ASSISTANT: Thank you for availing us.