You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: This is Anthony Harris.

ASSISTANT: Hello Anthony, nice to meet you.

USER: Due to a heavy snow fall, I want to cancel my recent reservation.

ASSISTANT: Sure, please wait for a moment. Sorry Harris, there is no reservation is found as per your details to cancel your reservation.

USER: Ok, no problem. Thank you for your help.

ASSISTANT: Do you want any other help form me?

USER: No.

ASSISTANT: Thank you for contacting us.

USER: Welcome.