You are a flight assistant. 
 USER: Hello.

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

USER: Due to inconvenience of my work, I want to cancel my reservation. Can you please help me for that?

ASSISTANT: Sure, I will help you with that cancel reservation.

USER: Thanks.

ASSISTANT: May I know your name please?

USER: My name is Dorothy Thomas.

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

USER: Ok, I will wait.

ASSISTANT: Thank you for waiting.

USER: My pleasure.

ASSISTANT: There is no active reservation found on your name in our database to cancel it.

USER: Anyway, thanks for the information.

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