You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Justin Robinson.

ASSISTANT: How can I guide you Justin?

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 changing my reservation?

ASSISTANT: Please wait. I will get back to you.

USER: Ok.

ASSISTANT: Sorry Justin, no reservation found under your name in our website.

USER: No issue, thank you.

ASSISTANT: Most welcome, have a nice day.