You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Brandon Wright.

ASSISTANT: Wright, how may 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 changing my reservation?

ASSISTANT: Sure, please give me a moment to check your ticket status. Sorry, no reservation is available by your name.

USER: No issue, thank you.

ASSISTANT: Thank you for reaching us.