You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Gary King here.

ASSISTANT: How may I assist you, Gary?

USER: Due to my dance competition postponed, can you cancel my ticket?

ASSISTANT: Sure, let me chek with your deatils. Sorry Gary, I did not found any reservation showing active in our database.

USER: It's ok. Thank you to inform me.

ASSISTANT: Thank you for approaching us, have a nice day.