You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Paul Clark here.

ASSISTANT: How can I assist you?

USER: I want to attend a Seminar in Washington. Can you please help me for booking the flight ticket?

ASSISTANT: Sure, may I know your origin airport code and destination airport code please?

USER: My airport codes are from DEN to DCA.

ASSISTANT: May I know your preferable journey dates please?

USER: My travelling dates are from 09/08 to 09/10.

ASSISTANT: Wait a moment please.

USER: Ok, I will wait.

ASSISTANT: Hawaiian airlines is available in your route with the ticket fare of 200, shall I proceed with the booking?

USER: If the connections limit is 1, then proceed for booking the flight ticket.

ASSISTANT: Your ticket is booked with the single connection flight-1003.

USER: Thanks for helping me.

ASSISTANT: Thank you for reaching us.