You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I need you to cancel my recent booking. Please help me.

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: May I know your name please?

USER: My name is Patricia Allen.

ASSISTANT: Sorry to inform you that there is no active reservation on your given name.

USER: That's ok. Thank you.

ASSISTANT: Thank you for contacting us.