You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I serve you at this moment?

USER: Please cancel my recent reservation owing to an emergency.

ASSISTANT: Sure, I will help you. May I know your name?

USER: My name is Paul Lee.

ASSISTANT: Yes, I have found your reservation. Shall I proceed to cancel?

USER: Please proceed to cancel.

ASSISTANT: Your reservation have been cancelled successfully.

USER: Thanks.

ASSISTANT: You are welcome, thank you for reaching us. Have a nice day.