Hello. I am Robert Taylor.
user
Hello, how can I help you?
assistant
 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?
user
Sure, please wait a minute.
assistant
Sure.
user
There is no reservation with your name.
assistant
No problem, thank you for your information.
user
Thank you for reaching us.
assistant