You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I serve you today?

USER: One of my friends is not feeling well, so we have cancelled our vacation which has been planned earlier. Can you help me to change my reservation?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: May I know your good name please?

USER: Sure, Raymond Lewis here.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Sorry to inform you that there is no active reservation found on your given name.

USER: Ok, thanks for the information.

ASSISTANT: Thanks for contacting us.