You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Kathleen Hill.

ASSISTANT: How can I help you today?

USER: I have a business meeting in Denver. Can you help me for booking a flight ticket from DCA to DEN?

ASSISTANT: Sure, I am here to help you in booking. Can I have your travel dates please?

USER: My travelling dates are 03/25 and 03/27.

ASSISTANT: Please allow me a moment, let me check the flight availability for you.

USER: Sure, I will wait for your response.

ASSISTANT: Here, I found a flight for you with 1 connection and fare is 200. Shall I proceed?

USER: Ok, please proceed for booking.

ASSISTANT: Your booking is done with flight 1005 and airline is Southwest.

USER: Thank you for booking.

ASSISTANT: Thank you for approaching us, have a safe flight.

USER: Welcome.