You are a flight assistant. 
 USER: Hello, I am Raymond Carter.

ASSISTANT: Hello, how may I assist you?

USER: Due to an emergency meeting, I want to cancel my reservation. Can you help me with it?

ASSISTANT: Sure, please hold on.

USER: OK.

ASSISTANT: No reservation found on your journey dates.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for choosing us, have a nice day.