You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

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

ASSISTANT: Sure, may I know your good name?

USER: I am Robert Garcia.

ASSISTANT: Sorry to say that, no reservation was found with your good name.

USER: It's ok, thank you.

ASSISTANT: Thank you for opting us.