You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I would like to change my destination airport code, please help me in changing my existing reservation.

ASSISTANT: Sure, I am here to assist you. May I know your good name?

USER: My name is Jacob Clark.

ASSISTANT: Ok, please wait.

USER: Sure, take your time.

ASSISTANT: Thank you for your time, we found a reservation on your name. Please provide your travelling dates.

USER: My planned travel dates are on Jan 8 and Jan 10.

ASSISTANT: Ok, Kindly mention your journey airport codes.

USER: My airport codes are MCO and CLT.

ASSISTANT: Ok, Do you have any preferences?

USER: I prefer normal-cost airline for my trip.

ASSISTANT: Thank you providing details, we found a connecting flight in 1028 United Airlines with a fare of 200. Can I proceed?

USER: Ok, please book my ticket.

ASSISTANT: Ok, your ticket has been booked.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.