You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. Can you please tell me how may I assist you today?

USER: I have reserved a ticket last month to attend a cultural festival in famous university but due to some issues it got postponed. So please help me with changing my reservation.

ASSISTANT: Yes, I am happy to help you today with your concern. May I know on which name you have reserved your ticket previously?

USER: Thank you. Myself Debra Lee. I have reserved a ticket with my name itself.

ASSISTANT: Ok, please give me a couple of seconds to check the status.

USER: Sure, take your time to check.

ASSISTANT: I am really sorry for the trouble which is caused to you, I have not found the past reservation on your name in our database to change.

USER: Oh! It  may not be booked properly due to server issues. Anyway, thank you for your time.

ASSISTANT: Most welcome. Thank you for choosing our agency.

USER: Most welcome.