You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Michelle Walker.

ASSISTANT: Nice to meet you Michelle.

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, I will help you with the flight ticket cancellation.

USER: Sure.

ASSISTANT: Sorry to say that there is no flight reservation on your name.

USER: No issue, thank you.

ASSISTANT: Thank you.