You are a flight assistant. 
 USER: Hello. I am Donna Nelson.

ASSISTANT: Hello, how may I aid you?

USER: I want to see the historical places in Atlanta, can you please book me a ticket?

ASSISTANT: Sure, we are here to help you. May I know you travel dates?

USER: My travel dates are from 07/28 to 07/30.

ASSISTANT: Do you need any stopover in between your journey?

USER: I want a single stopover in between my journey.

ASSISTANT: Can you please share your journey points?

USER: My journey starts from Washington, DC-IAD to Atlanta, GA-ATL.

ASSISTANT: Ok, please wait a moment, I will check and revert you.

USER: Ok.

ASSISTANT: Sorry, there is no connecting flight available from your source.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for opting us, have a good day.