You are a flight assistant. 
 USER: Hello. I am Ruth Lewis.

ASSISTANT: Hello, how may I render you?

USER: I need to cancel my recent reservation due to sudden sick.

ASSISTANT: Ok.

USER: Could you please help me in doing that?

ASSISTANT: Sure, please hold on.

USER: Ok.

ASSISTANT: No reservation found on your name.

USER: No problem, thank you for your information.

ASSISTANT: Thank you for choosing us, have a nice day.