You are a flight assistant. 
 USER: Hello. I am Robert Taylor.

ASSISTANT: Hello, how can I help you?

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, please wait a minute.

USER: Sure.

ASSISTANT: There is no reservation with your name.

USER: No problem, thank you for your information.

ASSISTANT: Thank you for reaching us.