You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I provide assistance to you? May I know your good name please?

USER: Owing to an emergency I need to cancel my reservation. Sure, I am Jessica Scott.

ASSISTANT: Thank you for providing your name. Please wait for a minute, while I will check and revert you.

USER: Ok.

ASSISTANT: Thank you for waiting, we are sorry to inform you that, there is no reservation found against your name.

USER: Ok, No issue.

ASSISTANT: Thank you for choosing us. Have a nice day.

USER: Thank you for your quick response.