You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you today?

USER: Myself Stephen Parker. For some personal reasons I want to cancel my reservation, can you please help me?

ASSISTANT: Sure. I am here to help you. Please give me a minute to check. There is no reservation found on your name in my data. Sorry for inconvenience.

USER: It's ok.

ASSISTANT: Thank you for choosing us.

USER: Thank you for the information.