You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I need to cancel my recent reservation due to cancel of my event. Could you please help me?

ASSISTANT: Yes, I can help you. May I know your good name please?

USER: I am Ruth Walker.

ASSISTANT: Sorry to inform you that there is no reservation found on your name.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for contacting us.