You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I support you?

USER: Can you please cancel my reservation due to my brother marriage has been cancelled?

ASSISTANT: Sure, we are here to help you. May I know your good name please?

USER: Cynthia Green is my name.

ASSISTANT: Unfortunately, there is no reservation found on your name.

USER: Ok, no issues. Thanks for your information.

ASSISTANT: Thanks for connecting us, have a great day.