You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,. May I know your name?

USER: I am Patricia Young.

ASSISTANT: How can I render you Patricia Young?

USER: Due to some political issues, my plan to conduct a religious festival at my home town got postponed. Can you please assist me in changing my reservation?

ASSISTANT: Sure, we are here to aid you.

USER: Thank you.

ASSISTANT: Please, wait for a while.

USER: sure.

ASSISTANT: Thanks for waiting, we are glad to notify you that we found a reservation.

USER: Ok.

ASSISTANT: Can you share me your current journey details?

USER: My new journey dates are from 03/02 to 03/04. I want to leave from Oakland, OAK to  reach New York, JFK.

ASSISTANT: Thanks for your details.

USER: Ok.

ASSISTANT: There is no flight found based on your request.

USER: No problem. Thank you for the information.

ASSISTANT: Thank you for opting us, have a nice day.