You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Kimberly Nelson.

ASSISTANT: How may I assist you today?

USER: I would like to change my reservation as my trip got postponed, can you please help me out?

ASSISTANT: Sure, I am oblige to help you with that.

USER: Thank you.

ASSISTANT: Please wait a moment to check your previous reservation.

USER: Sure.

ASSISTANT: Yes, I have found your reservation. Can you please provide your new journey airport codes for booking?

USER: I am flying from PHX to DTW.

ASSISTANT: Ok, may I know your preferable departure and return dates of travelling?

USER: I am travelling on these dates 01/10 and 01/12.

ASSISTANT: Please wait a moment to check the flights availability.

USER: Sure.

ASSISTANT: I have found a connecting flight in your route. Flight number 1019 having with a fare of 100 provided by AA airlines. Shall I confirm this flight ticket for you?

USER: Ok, you can proceed with this flight.

ASSISTANT: Ok, your ticket has been confirmed. Have a safe journey.

USER: Thank you for your services.

ASSISTANT: Thank you for reaching us, have a great journey.