You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I be your helping hand today?

USER: As my father is a farmer, I planning to take him to Montgomery county agricultural fair to know different methods of farming.

ASSISTANT: Ok.

USER: So, can you please assist me in reserving a flight ticket to Washington, IAD?

ASSISTANT: Sure, I am euphoric to help you. May I know form where you want to board?

USER: Las Vegas, LAS is my boarding point of trip.

ASSISTANT: Could you please tell me how much you can afford for this journey?

USER: I can afford up to 200.

ASSISTANT: Let me know your trip dates so, that it will be easy to check the flights.

USER: Ok, I would like to start on 08/11. 08/13 is my return date of trip.

ASSISTANT: Do you need connecting flight?

USER: No, I need a direct flight.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Thanks for being patience. I am here to inform you that, there is no direct flight available on your given specified dates.

USER: It's ok, no problem.

ASSISTANT: Ok. Your good name please.

USER: I am Anthony Anderson. Thank you for your kind information.

ASSISTANT: Thank you for approaching us.