You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I be your helping hand today?

USER: Can you please help me to book a flight ticket from ATL to LAS?

ASSISTANT: Sure, I am glad to help you. May I know your planned dates please?

USER: My travelling dates are Nov 15 to Nov 17.

ASSISTANT: Is there any connection limit for you?

USER: I need a single connection of flight.

ASSISTANT: In which class, you prefer to go?

USER: I am comfortable with any class.

ASSISTANT: Can I have your name please?

USER: Brain Parker.

ASSISTANT: Do you have any other concerns to say?

USER: I want to depart in the morning.

ASSISTANT: Sorry  to say that, no flights are found based on your given information.

USER: No problem, thank you.

ASSISTANT: Thank you for choosing us.