You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I want to cancel my reservation can you help me?

ASSISTANT: May I know your name please?

USER: My name is Sarah Scott.

ASSISTANT: Sure Scott, I am here to help. Please wait for a minute to check.

USER: OK.

ASSISTANT: Sorry Scott, I cannot find any reservation with your name.

USER: OK. Thank you for checking.

ASSISTANT: Thank you very much for contacting us. It was my pleasure.