You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you?

USER: Please help me to cancel my booking now, I am sick.

ASSISTANT: Sure, I am happy to help you. May I know your good name to proceed further?

USER: My name is Daniel Brown.

ASSISTANT: Sorry, there is no active reservation on your name in our data.

USER: Oh! THat's sad to know from your side, thank you for checking anyways.

ASSISTANT: Thank you for choosing us.

USER: Most welcome.