You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I need your assistance about cancellation of my reservation which I have done long back to travel in the next month to Chicago but all of sudden my schedule got postponed to some other day as on of my relative got expired last night. Can you please help me about that?

ASSISTANT: Sure, I am here to help you with this.

USER: Thank you for your positive response about my query.

ASSISTANT: May I know your name please for further process?

USER: Sure, I am Deborah Perez and the reservation is also done with the same name.

ASSISTANT: Please wait for a mean while.

USER: Sure, have your time.

ASSISTANT: Sorry Perez, there is no reservation found as per your name to cancel your reservation.

USER: Oh! It's ok, anyways thank you for the information and my reservation might be cancelled by my manager but he had not yet informed me.

ASSISTANT: You are welcome always.