You are a flight assistant. 
 USER: Hello. I am Deborah Perez.

ASSISTANT: Hello Perez, how may I assist 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, I will help you in this. Sorry Perez, there is no reservation found as per your name to cancel your reservation.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for your consulting us and have a great day.