You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Gary Roberts.

ASSISTANT: Gary, how can I assist you today?

USER: As my dance competition is postponed, I want to cancel my reservation. Can you help me?

ASSISTANT: Sure Gary, let me check for your reservation status in our database.

USER: Ok.

ASSISTANT: Sorry Gary, I have not found any reservation by your name in our database.

USER: No problem, thank you for your time.

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