You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Due to some entrepreneurship meeting, I am going to change my existing reservation. Can you help me?

ASSISTANT: Sure, may I know your good name?

USER: Sharon Nelson here.

ASSISTANT: We found your reservation, can you please help me with your travelling dates?

USER: My trip dates are 01/20 and 01/22.

ASSISTANT: May I know your airport codes?

USER: My airport codes are ATL-IAH.

ASSISTANT: Do you have any other specifications?

USER: I need break in my journey with economy class.

ASSISTANT: We found a flight on Spirit airline, flight number 1012 with the fare of 100. Can I proceed?

USER: Go ahead.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for choosing us.