You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, How can I serve you?

USER: I would like to cancel my recent reservation, my baseball tournament has been rescheduled to future dates. Can you please help me with cancellation?

ASSISTANT: Sure, May I know your name?

USER: My name is Michael White.

ASSISTANT: Sorry, No reservation found on your name.

USER: Not a problem, thank you.

ASSISTANT: Thank you for availing us.