You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I guide you for today?

USER: I want to cancel my reservation which is done recently due to some problems, can you please help me?

ASSISTANT: May I know your name?

USER: Sure, my name is Paul Young.

ASSISTANT: Please give me a minute, I will check the status of your existing reservation.

USER: Sure, take your time.

ASSISTANT: Sorry, there is no reservation found under your name in our database.

USER: Ok, that's fine. Anyways, thank you for your service.

ASSISTANT: Thank you for contacting us, have a nice day.