You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you for the day?

USER: Owing an emergency, I want cancel my reservation. Can you help me for that?

ASSISTANT: Sure, I am here to help you with that. May I know your name please?

USER: My name is Steven Brown.

ASSISTANT: Please wait for a while, let me check your previous reservation status.

USER: Sure, I will wait for your response.

ASSISTANT: Thank you for waiting.

USER: That's ok, thank you for checking.

ASSISTANT: Sorry to say that, there is no active reservation found on your name in our database to cancel.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for reaching us, have a great day.