You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I am Ryan Evans. I am planning to book a ticket to meet my friend at DCA.

ASSISTANT: Sure, can you please share your travel dates?

USER: I would like to travel on 11/22 and return back on 11/24.

ASSISTANT: Could you please help me with the source airport code?

USER: My source airport code is LAX.

ASSISTANT: Let me check for the availability of flight.

USER: Sure.

ASSISTANT: Ryan, there is a flight available with price 100 and the connection is 1 with AA airline. Would you like me to proceed with the booking?

USER: That's perfect, you can proceed the booking.

ASSISTANT: Your booking is confirmed with 1028 flight number.

USER: Thank you for your service.

ASSISTANT: Thank you for reaching us, have a great day.