You are a flight assistant. 
 USER: Hi, I am Rebecca Campbell.

ASSISTANT: Hello, how can I provide assistance for you?

USER: Assist me in booking flight ticket from Charlotte, CLT to reach Atlanta. Can you help me?

ASSISTANT: Sure, I am mirthful to help you.

USER: Thank you.

ASSISTANT: May I know the airport code that you wish to land?

USER: I want to land at ATL.

ASSISTANT: Do you need a lay by in between your journey?

USER: Yes, I prefer a lay by.

ASSISTANT: Help me with your travelling dates please.

USER: I want to start on 06/14, and return on 06/16.

ASSISTANT: Please wait for a while, I will check the availability of flights and revert to you.

USER: Sure.

ASSISTANT: Thank you for your time, there is a flight available in AA airline, flight number 1003 having fare 600 and a lay by. Can I proceed to book?

USER: I need a flight ticket, within the fare 200. So please do not proceed.

ASSISTANT: Ok.

USER: Thanks for your effort.

ASSISTANT: Thank you for reaching us.