You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I would like to meet my friend at Washington, will you help me in booking the flight ticket from DFW to IAD?

ASSISTANT: Sure, I am here to help you. Could you please share your travel dates?

USER: My travelling dates are Mar 01 and Mar 03.

ASSISTANT: May I know your name?

USER: Myself Amanda White.

ASSISTANT: Do you have any connection limit?

USER: I need a flight with single connection.

ASSISTANT: Sorry, there are no flights found on your travel dates.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thank you for choosing us.