You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Paul Campbell.

ASSISTANT: How can I help you?

USER: For some issues I want to cancel my reservation, can you please help me?

ASSISTANT: Just a moment please.

USER: Ok.

ASSISTANT: I am sorry no reservation found on your name.

USER: It's ok. Thank you for the information.

ASSISTANT: Thank you for choosing us.