You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello,. How could I serve you?

USER: I want to cancel my recent reservation as I am hospitalised.

ASSISTANT: May I know your name?

USER: I am Williams Anderson.

ASSISTANT: Please wait for a while, let me check and back to you.

USER: Ok.

ASSISTANT: Sorry to inform, there is no reservation found on your given name.

USER: No issues, thank you .

ASSISTANT: Thank you for choosing us.