You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you at this moment?

USER: I am Carol Wilson from San Francisco.

ASSISTANT: Nice meeting you Carol.

USER: Thanks, I would like to go to Washington next week for my film shooting purpose, can you please book a flight ticket for me?

ASSISTANT: Sure, I am glad to help you with that. Can you please provide your planned dates of travelling?

USER: Thank you for accepting my request, I want to take off on 09/22 and book my return ticket also on 09/24.

ASSISTANT: Ok, may I know your origin and destination airport codes for booking?

USER: I would like to fly from SFO and destination airport is DCA.

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 200 is provided by Hawaiian airlines. Shall I proceed with this?

USER: Please proceed.

ASSISTANT: Ok, your ticket has been booked in flight number 1020.

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

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