You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Is this Global flight ticket booking agency?

ASSISTANT: Yes, you are at right place. How can I assist you at this moment?

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. Can you please help me?

ASSISTANT: Sure, I will try with that.

USER: Thanks.

ASSISTANT: May I now your good name for checking the reservation status?

USER: Sure, my name is Justin Walker.

ASSISTANT: Ok, please be hold on for a minute, I will check for reservation status.

USER: Ok.

ASSISTANT: Thank you for waiting. Sorry Justin, I did not came across your name in the reservation list to cancel it.

USER: It's alright, no problem, I think the ticket was not booked properly while I am booking. Anyways, thank you for the information.

ASSISTANT: May be that reason. Any thing else do you want to know from us?

USER: No thanks.

ASSISTANT: Welcome. Thank you for choosing us. Have a good day.