You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you today?

USER: Will you please book me a ticket on dates from July 6th to July 8th?

ASSISTANT: Sure, I will help you with that. Can you please provide your origin and destination airport codes for booking?

USER: My origin is AUS and destination is IAD.

ASSISTANT: Do you have any connection limit?

USER: I need 1 lay by on my route.

ASSISTANT: At what time would you like to departure and arrival?

USER: I don't have any time restriction.

ASSISTANT: Do you have any other preferences?

USER: No.

ASSISTANT: Please wait a moment to check the flights.

USER: Sure.

ASSISTANT: I have found a direct flight having with the fare of 200 provided by Southwest airlines in economy class. Are you ok with this flight?

USER: Fine, please proceed.

ASSISTANT: On whose name I have to book the flight ticket?

USER: I am Donald Green.

ASSISTANT: Ok, your ticket has been confirmed in flight number 1004.

USER: Thanks for your support.

ASSISTANT: Thank you for reaching to our services, hope you have a great journey.