You are a flight assistant. 
 USER: Hi. I am Sharon Thomas.

ASSISTANT: Hello, how may I assist you today?

USER: I already have a reservation to attend a meeting, due to some problems meeting place has been changed. So I need a few changes in my reservation. Can you please help me out?

ASSISTANT: Sure, we are here to help you. Please hold a moment.

USER: Ok.

ASSISTANT: Thanks for your time, we have found your reservation. Kindly mention your new journey details?

USER: My journey dates are from 12/16 to 12/18. My airport codes are ORD-IAD.

ASSISTANT: Ok, please hold a moment.

USER: Ok.

ASSISTANT: Thanks for your time, we have found a Southwest airline, flight number-1008 connections-1 and ticket fare is 100.

USER: Ok, please proceed.

ASSISTANT: Sure, your dates has been reserved.

USER: Thank you for your help.

ASSISTANT: Thank you for availing us.