You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I be your helping hand today?

USER: Can you please help me in cancelling my recent reservation?

ASSISTANT: Sure, I am gleeful to help you. May I know your name please?

USER: Melissa Allen.

ASSISTANT: Ok, please wait for a minute.

USER: Sure.

ASSISTANT: Sorry to say that, no reservation was found on your name to cancel.

USER: No issue, thank you for the help.

ASSISTANT: Thank you for choosing us.