You are a flight assistant. 
 USER: Hello, I am Jack Miller.

ASSISTANT: Hello, how can I serve you today?

USER: I want to exhibit my arts in an Exhibition at Charlotte, NC - CLT, can you help me with the booking?

ASSISTANT: Sure, we will help you. May I know your nearest airport code?

USER: My nearest source airport code is Washington, DC - DCA.

ASSISTANT: Please mention your probable journey dates.

USER: My trip dates are from 04/02 to 04/04. My price limit should not exceed 200.

ASSISTANT: Ok, please hold on for a moment.

USER: Sure.

ASSISTANT: Jack Miller, are you ok with direct flight?

USER: No, I need a stopover.

ASSISTANT: Sorry but there is no flight available with single stopover.

USER: It's alright. Thank you for your information.

ASSISTANT: Thank you for reaching us.