You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Please see if there is any possibility to cancel my ticket, as I will be not able to catch my flight on the date which my ticket has been booked, I am going to another place on that day.

ASSISTANT: How may I assist you? Ok, can I know your name?

USER: Yes, see if any ticket is showing on the name Raymond Moore.

ASSISTANT: Ok. There is no reservation with your name.

USER: Ok, no issue, just a while back I tried to cancel my ticket, but due to some network issues I did not receive any confirmation, that's why I tried it again, it might have been cancelled previously.

ASSISTANT: Ok.

USER: Thank you for giving immediate response.

ASSISTANT: Most welcome.