You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am planning to cancel my recent reservation. Can you please help me for this?

ASSISTANT: Sure, can you provide me your name?

USER: Myself Margaret Roberts.

ASSISTANT: Give me a moment.

USER: Sure, I will wait for your response.

ASSISTANT: Margaret Roberts. I regret to inform that there is no reservation by your name. Thank you for reaching us.

USER: Not a big problem, anyhow thank you very much for your kind information.