You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you now?

USER: Can you please help me to cancel my previous ticket? Because I have cancelled my trip due to some financial issues.

ASSISTANT: Sure, I am glad to help you with that.

USER: Thank you for accepting my request.

ASSISTANT: Can I know your name to check your previous reservation?

USER: My name is Paul Davis.

ASSISTANT: Please be on hold.

USER: Ok, take your time.

ASSISTANT: We regret to inform you that, there is no reservation found on your name in our records.

USER: Oh! It is sad to hear from your end. Anyways thank you for helping me.

ASSISTANT: Thank you for reaching us, have a great day.