You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I am Carolyn Williams from Washington.

ASSISTANT: Welcome to flight booking agency Carolyn.

USER: Thanks, I would like to visit New York next week, can you please book a flight ticket for me?

ASSISTANT: Sure, I am glad to assist you with that. Can you please provide your origin and destination airport codes for booking?

USER: Thank you, I want to take off from IAD and destination airport is LGA.

ASSISTANT: Ok, may I know your departure and return dates of travelling?

USER: I want to departure on 09/23 and confirm my return ticket also on 09/25.

ASSISTANT: Please wait a moment to check the flights availability.

USER: Ok.

ASSISTANT: According to your information, I have found a flight with single stop over in your journey with a minimum fare of 100 is provided by UA airlines. Shall I proceed with this?

USER: Please confirm this flight ticket for me.

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

USER: Thank you for your help in booking flight ticket.

ASSISTANT: Thank you for approaching us, have a great journey.