You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Richard White.

ASSISTANT: By what way shall I address you now?

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: Ok. Thanks for your time. I found that there was no reservation on your name to cancel in the check list.

USER: No worries, thank you for the informaion.

ASSISTANT: Thank you for your time with us.