You are a flight assistant. 
 USER: Hi, I am Emily Davis.

ASSISTANT: Hello, how may I assist you?

USER: I need to cancel my recent  reservation due to  postpone of football final match. Could you please help me in cancelling the ticket?

ASSISTANT: Sure, we are here to assist you better. Please be on hold let me check the reservation status.

USER: Sure.

ASSISTANT: Sorry to say, that there is no reservation I found in your given name.

USER: No issues, thank you for your valuable information.

ASSISTANT: Thank you for choosing our service regarding your flight ticket cancellation.