You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: Can you please help me in changing my reservation as my exams got postponed?

ASSISTANT: Sure, may I know your name please?

USER: I am Steven Mitchell.

ASSISTANT: Wait a while I will get back to you with the current satus.

USER: Ok.

ASSISTANT: We found a reservaion in your name. Can I have your journey details?

USER: Sure, my travel dates are from 11/22 to 11/24. I would like to board from AUS and land at LGA.

ASSISTANT: We found a flight in an airline AA with 1023 number having a single connection price of 100. Shall I reserve?

USER: You can reserve it.

ASSISTANT: Your flight ticket has been processed.

USER: Thank you.

ASSISTANT: Thank you for opting us.