You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I would like to cancel my recent ticket because the planned trip got cancelled. Can you please help me to cancel the ticket?

ASSISTANT: Ok, I will help you with that. Mean while may I know your name?

USER: Thank you for accepting my request. My name is Ronald Jones.

ASSISTANT: Sorry, no reservation found on your name to cancel.

USER: It's ok, I think the ticket is not reserved properly. Anyways thank you for your help.

ASSISTANT: Thank you for reaching us.

USER: You are welcome.