You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I want to cancel my recent reservation, Can you please help me in that?

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

USER: Thank you. My name is Patricia Hill.

ASSISTANT: There is no reservation found under your name.

USER: Ok, that's not a problem. Thanks for your information.

ASSISTANT: Thank you for choosing us.