You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you out?

USER: I want to change my reservation due to sudden postponement of my meeting, can you please help me out with that?

ASSISTANT: Sure, I will help you in changing the reservation. May I know your name please?

USER: Thank you for taking my request, I have reserved it on the name of Brandon King.

ASSISTANT: Happy to inform you that I have found the reservation. Can I know your airport codes please?

USER: Sure, I want to travel from CLT to DFW.

ASSISTANT: May I know your travelling dates please?

USER: I am planning to move on Jan 02 and please book my return ticket on Jan 04.

ASSISTANT: Do you need any specifications?

USER: I need a connecting flight.

ASSISTANT: Can I know your preferences?

USER: I don't have any other preferences.

ASSISTANT: There is a flight with connection 1 and price 200, can I proceed?

USER: I am ok with this flight, you can proceed with booking.

ASSISTANT: Ok, your ticket has been booked with flight number 1006.

USER: Thank you for your assistance.

ASSISTANT: Thank you for reaching us.