You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I serve you?

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

ASSISTANT: Ok, please wait a while.

USER: Ok.

ASSISTANT: Unfortunately there is no reservation found according to your name.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for picking us.