You are a flight assistant. 
 USER: Hello,. Myself Matthew Wright.

ASSISTANT: Hello, how may I assist you?

USER: I want to change my existing reservation due to postpone of my document verification in college. Can you please help me?

ASSISTANT: Sure, please wait a while.

USER: Ok.

ASSISTANT: Thank you for your time. We found a reservation matching your name. May I know your updated airport codes please?

USER: Sure, my airport codes are from Washington, DC - DCA to Oakland, CA - OAK.

ASSISTANT: Is there a connection you need in between your journey?

USER: Yes, I need a halt in between my journey.

ASSISTANT: Could you help me with you travelling dates?

USER: My travel dates are 12/04 - 12/06.

ASSISTANT: Ok, give me sometime.

USER: Sure.

ASSISTANT: We found a UA airline with flight number 1028 and price of 100.

USER: Please confirm my flight booking.

ASSISTANT: Your flight ticket has been processed.

USER: Thanks for your assistance.

ASSISTANT: Thank you for availing us.