You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how best can I guide you for the day?

USER: I want to amend my reservation as I am sick. Could you help me out?

ASSISTANT: Sure, may I know your good name?

USER: Anthony Hall here.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, there is no active reservation found with the given name.

USER: No problem, thank you.

ASSISTANT: Thank you.