You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: I want to book a flight ticket to HOU. Can you please aid me for booking from ATL?

ASSISTANT: Sure. Tell me your travel dates please?

USER: My trip dates are Jan 20 and 22.

ASSISTANT: Are you looking for a stopover in your journey?

USER: Yes.

ASSISTANT: Any other preferences?

USER: My return time is afternoon.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: Thanks for waiting. Thanks for waiting. But I am sorry to say that there are no flights available.

USER: Ok, thank you.

ASSISTANT: May I know your name please?

USER: Jonathan Harris here.

ASSISTANT: Thank you.