You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: Please assist me to change an existing reservation as my interview got postpone due to technical issues.

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: May I know your name?

USER: I am Samantha Johnson.

ASSISTANT: I found your reservation. Please provide your trip dates.

USER: Sure, I intend to start my journey on 09/10 and my return date will be on 09/12.

ASSISTANT: Can you share your airport codes?

USER: My boarding and landing airport codes are DTW and AUS.

ASSISTANT: Do you need any connection limit?

USER: Yes, I need a connecting flight.

ASSISTANT: Do you have any other specifications?

USER: I would like to travel in an economy class.

ASSISTANT: American Airlines is providing connecting flight on this route with a ticket fare of 100 and flight departs at 22:00 hours and arrives at 5:00 hours, shall I book your ticket in this flight?

USER: That's Fine, You can reserve it.

ASSISTANT: Your ticket has been changed in flight 1000.

USER: Thank you.

ASSISTANT: Thank you for choosing us.