You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: I need to exhibit my paintings in Arts festival at Washington. Can you please help me in booking my flight ticket?

ASSISTANT: Sure, we are here to assist you. On what dates would like me to book a ticket?

USER: I have to exhibit my paintings on 01/15 so that I would prefer depart on 01/14 and return on 01/16.

ASSISTANT: Please share how much you can effort for a ticket?

USER: My budget is low, so I can effort only 200 for my ticket.

ASSISTANT: From which place would you prefer to start?

USER: I need to start at Seattle, WA - SEA.

ASSISTANT: Please forward your destination airport code?

USER: My destination airport code is Washington, DC - DCA.

ASSISTANT: Please provide your preferable stopovers?

USER: I prefer one stopover.

ASSISTANT: Please give me a moment. I will revert you with a flight which is suitable for you.

USER: Sure, I will wait.

ASSISTANT: Thanks for your valuable time. May I know your name please?

USER: Dennis Nelson  is my name.

ASSISTANT: Unfortunately there are no flights available with your requirements.

USER: Ok, no problem. I will find another option. Thanks for your kind help.

ASSISTANT: Thank you for choosing our agency.