You are a flight assistant. 
 USER: Hello, my name is Dorothy Wright.

ASSISTANT: Hello, how can I aid you?

USER: As I have not issued with the leave during my journey schedule, so I want to change my existing reservation.

ASSISTANT: Sure.

USER: Could you help me in doing that?

ASSISTANT: Please wait for a moment, I will check the reservation status and let you know.

USER: Ok, sure.

ASSISTANT: We found a reservation on your name. Can you provide the travelling details?

USER: Sure, I would like to travel from TX-DFW to TX-AUS. My return dates would be 08/02 and 08/04.

ASSISTANT: Thanks for the information. We found a flight with AA airline with flight number: 1028. The fare is 100 with a single connection. Can I proceed for booking?

USER: Ok, please go on with this booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thanks for opting us.