You are a flight assistant. 
 USER: Hello, Kathleen Roberts here.

ASSISTANT: Hello Roberts. Good morning, how can I assist you at this moment?

USER: Owing for an emergency, I would like to cancel my reservation. Can you please help me in cancelling my reservation?

ASSISTANT: Sure, I will help you with cancelling your reservation.

USER: Thank you.

ASSISTANT: Please wait a moment, let me check the existing reservation status. Thank you for waiting. Sorry Roberts, no reservation has found under your name to cancel.

USER: No problem, thank you for the information.

ASSISTANT: Most welcome. Thank you for choosing us.

USER: You are welcome.