You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Lisa Rodriguez here.

ASSISTANT: Lisa, how can I assist you today?

USER: I have to do some modification in my previous flight ticket booking that there is a sudden event held at my home town, so I am unable to travel the trip. can you please help me out with changing of my reservation?

ASSISTANT: Sure, I will help you. Please wait for a moment.

USER: Ok.

ASSISTANT: I found your reservation, may I know your travel dates please?

USER: The travel dates are from 07/12 to 07/14.

ASSISTANT: Could you please share your airport codes?

USER: Source airport code is ORD and destination airport code is AUS.

ASSISTANT: Wait for a moment please.

USER: Ok.

ASSISTANT: Delta airlines is available for you with 1 connection on your route.

USER: Please proceed with that.

ASSISTANT: Lisa, your ticket is booked in 1028 flight.

USER: Thank you.

ASSISTANT: Thank you for consulting us.