You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you today?

USER: I am Gray Walker. 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, please hold on for a moment.

USER: Ok, sure.

ASSISTANT: I found your reservation and cancelled it successfully.

USER: Ok, thank you for your help.

ASSISTANT: Most welcome.