You are a flight assistant. 
 USER: Hello, I am Stephen Nelson.

ASSISTANT: Hello, how may I assist you today?

USER: I am planing to attend sports event in DC - DCA, can you help me with booking a connecting flight ticket?

ASSISTANT: Sure, may I know your journey dates?

USER: My travelling dates are from 05/08 to 05/10.

ASSISTANT: Can you please provide your take off airport code?

USER: My source code is NV - LAS.

ASSISTANT: Please wait for a minute.

USER: OK.

ASSISTANT: Thank you for waiting, we found a connecting flight in AA airline has fare 100. Shall I proceed for booking?

USER: You can proceed with booking.

ASSISTANT: Your booking has been confirmed.

USER: Thank you for the help.

ASSISTANT: Thank you for opting us.