You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you today?

USER: I would like to cancel my recent reservation due to some health issues, can you please help me in cancelling?

ASSISTANT: Sure, I'll definitely help you with that. May I know your good name please?

USER: Sure, myself Christopher Williams.

ASSISTANT: Ok, please wait for a moment while I'll check your reservation status.

USER: Ok, I will wait for your response.

ASSISTANT: Christopher, there is no reservation found under your name to do cancellation.

USER: That's ok, not an issue. Anyway thank you for the information.

ASSISTANT: Thank you for reaching us.