You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I will be cancelling my reservation because of delay in basketball match, can you help me?

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

USER: My name is Catherine White.

ASSISTANT: Sorry, no reservation has been found on your name.

USER: That's fine, no issues with it.Thank you for checking.

ASSISTANT: Thank you for choosing our service.

USER: You are welcome.