You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Can you please cancel my reservation?

ASSISTANT: Sure, may I know your name?

USER: Myself David Carter.

ASSISTANT: Ok, please wait a minute.

USER: Ok.

ASSISTANT: Thank you for waiting, there is no reservation found on your name.

USER: Ok, no problem. Thank you so much.

ASSISTANT: Thank you for reaching us.