You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am Angela White. I am a singer and would like to perform on live concert in Phoenix, but due to some heath issues I am not able to perform in live concert.So I would like to cancel my recent reservation. Could you please help me in cancellation?

ASSISTANT: Sure, please wait I will check and revert you.

USER: Sure, I would be waiting for your response.

ASSISTANT:  Sorry to inform you that no reservation was found on your name in our data base.

USER: Ok, no problem at all. Thank you for your kind information.

ASSISTANT: Thank you for availing us.