You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I want to visit Dallas & Fort Worth, DFW for site seeing, Can you please help me to book a ticket from SEA?

ASSISTANT: Sure, I am glad to help you. Can you please share your trip dates?

USER: My travelling dates are Aug 10 and Aug 12.

ASSISTANT: Is there any class preference?

USER: No.

ASSISTANT: Is there any airline preference?

USER: No.

ASSISTANT: Is there any connection limit for your journey?

USER: I want a direct flight.

ASSISTANT: May I know your time concern?

USER: I am comfortable to travel in any time.

ASSISTANT: Could you help me with your name please?

USER: Sure, I am Thomas Taylor.

ASSISTANT: Thomas Taylor, regret to inform that there is no direct flight available for this route.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for connecting with our agency.