You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I be at your service today?

USER: I need to travel HOU and ATL, can you reserve flight ticket?

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: My travelling dates are May,28 and May,30.

ASSISTANT: May I know your connection limit?

USER: I prefer direct flight.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Please help me with your name for booking.

USER: Myself Benjamin Lee.

ASSISTANT: Sorry for this inconvenience, I could not find any flight with your requirements.

USER: Oh! Sad to hear that. Anyway, I will find another alternative to complete my journey.

ASSISTANT: Thank you for reaching us.