You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I have planned a trip to Washington to visit College Bowls Mens Football there. Can you please help me to book a direct flight to Washington?

ASSISTANT: Yes, I feel glad to assist you about it. Can you please let me know your dates?

USER: Sure, I have planned to start my journey on 06/09 and I want a return flight on 06/11.

ASSISTANT: Could you please provide your terminus and genesis codes?

USER: Sure, my terminus and genesis codes are DCA and LGA.

ASSISTANT: Please give me a moment so that I can check best flight available for you.

USER: Ok, sure have your time and revert back me with a best flight details.

ASSISTANT: May I know your name please for booking a flight ticket?

USER: Sure, I am Brandon Carter.

ASSISTANT: Sorry for inconvenience Carter, there are no direct flights available on your route.

USER: Not an issue, I will go with another resources to reach out my destination.

ASSISTANT: Thank you for your positive attitude.

USER: You are welcome, thanks for your wonderful service for checking flights for my journey.

ASSISTANT: Hope you reach us again.