You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am Paul Anderson. Can you help me in booking a flight ticket for me from IAD to BOS to attend a client meeting?

ASSISTANT: Sure, I can help you. Can you please provide me your trip dates?

USER: Thank you and I am planning to travel on 02/26 and arrival back on 02/28.

ASSISTANT: Ok, please wait for sometime.

USER: Sure and I need a non connecting flight in my triup.

ASSISTANT: Sorry Paul, there is no direct flight available on your given dates.

USER: That's fine. Thank you for your service.

ASSISTANT: You are welcome, thank you for choosing us.