You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I'm Raymond Lee.

ASSISTANT: How can I assist you today?

USER: I am planning to attend music concert at IAD, can you please help me with booking a flight ticket from DCA?

ASSISTANT: Sure, will you mention your travelling dates please?

USER: Sure, I would like to take off on 01/22 and return back on 01/24.

ASSISTANT: Please give me a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, there is a flight with price 100 and the connections 2 is available. Shall I confirm your ticket?

USER: I need a flight with 1 connection.

ASSISTANT: There is a flight available with price 100 and the connections 1 is available.

USER: Yes, please proceed with the booking.

ASSISTANT: Your ticket is booked. The flight number is 1021 and the airline is Delta.

USER: Thank you for contacting us.

ASSISTANT: Welcome, have a great day.