You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Larry Lee from Atlanta.

ASSISTANT: What service that you are looking from our agency Larry Lee?

USER: I have to go to Washington next week, can you please book a flight ticket for me?

ASSISTANT: Sure, I am gleeful to assist you with that.

USER: Thank you.

ASSISTANT: Can you please provide your planned to go there?

USER: I want to take off on 10/13 and book my return ticket also on 10/15.

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

USER: I want to fly from ATL 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 1008.

USER: Thank you for assisting me.

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