You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I am Ryan Turner, I want to travel from ATL to DCA, can you please help me to book a ticket?

ASSISTANT: Sure, on which date you like to travel?

USER: Sure, my dates of journey is from 12/19 to 12/21. I want a direct flight.

ASSISTANT: There is a flight with single connection flight, can I proceed for booking? I am sorry no flights available with 0 connections.

USER: That's fine. Thank you for your service.

ASSISTANT: Thank you for choosing us.