You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Myself Elizabeth Lewis. Can you please help me in booking a flight ticket from ORD to DCA locations?

ASSISTANT: Ok, I can aid you with checking a flight ticket. Could you please let me know your trip dates?

USER: My travelling dates are from 08/23 and 08/25.

ASSISTANT: Ok, I searched a flight for you, the airlines is Delta with the connection limit 1 and the ticket fare is 100. Would you like me to book the ticket?

USER: Can you please search for a direct flight?

ASSISTANT: Sure.

USER: Thanks.

ASSISTANT: Sorry, no flight having a connection limit 0 in this route.

USER: Ok.

ASSISTANT: Thank you for choosing us. Have a nice day.