You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

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

ASSISTANT: Sure, may I know your name please?

USER: My name is Richard Campbell.

ASSISTANT: Please wait for a while.

USER: Ok, I will wait.

ASSISTANT: There is no reservation found with your given name.

USER: Anyway, thanks for the information.

ASSISTANT: Thank you for opting us.