You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you today?

USER: I am suffering with typhoid fever, so I am unable to travel to my old office to attend the meeting, can you help in cancelling my ticket?

ASSISTANT: Sure, can I know your good name please?

USER: Sure, I am Sarah Harris.

ASSISTANT: Sorry, Actually we did not find any reservation on your name.

USER: Ok, no issues. Thanks for your valuable information.

ASSISTANT: Thank you for approaching us, please give a valuable feedback in our website.