You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you now?

USER: Due to cancellation of my convocation day, I want to cancel my reservation.

ASSISTANT: Ok, may I know your good name?

USER: My name is Raymond Allen.

ASSISTANT: Please wait for a moment, while I check for the reservation in our system data.

USER: Ok.

ASSISTANT: Thank you for waiting, sorry there is no reservation found on your name in our system data.

USER: Not a issue. Thank you for your quick response.

ASSISTANT: Thank you, we hope see you again.