You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: Will you help me in booking the flight ticket from AUS to DCA?

ASSISTANT: Yes, I am willing to help you. Can you please share your journey dates that you prefer to travel?

USER: My travelling dates are Dec 21 and Dec 23.

ASSISTANT: Ok, do you require any stopovers in your journey?

USER: I need a flight with single connection.

ASSISTANT: May I know your name please?

USER: Myself William Miller.

ASSISTANT:       Will you let us know if you have any other preferences?

USER: I prefer economy class.

ASSISTANT: Ok, please wait a minute I will get back to you with the flight details.

USER: Ok, I will wait.

ASSISTANT: Thank you for waiting, we found a flight with number 1028 at a price of 200 with 1 connection in economy class provided by Hawaiian airlines.

USER: Sure, you can proceed with the booking.

ASSISTANT: Sure, your ticket is booked.

USER: Thank you for helping me.

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