You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Karen Hill.

ASSISTANT: How can I help you at this moment?

USER: I am planning to book a ticket to attend a meeting at IAH. Can you please help me out to book a ticket from ATL?

ASSISTANT: Sure, I will help you with this. Can you please provide your journey dates to proceed further?

USER: I am planning to travel on 06/30 and return back on 07/02.

ASSISTANT: Wait a moment please.

USER: My connection limit is 0.

ASSISTANT: Karen Hill, there are no flight services available with your preferences of direct flight on this route.

USER: That's fine,  thank you for your service.

ASSISTANT: Thank you for contacting us.