You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Scott Wilson.

ASSISTANT: How can I assist you?

USER: I am planning to visit Olympic National Park at Washington, could you please help me with booking a flight ticket from ATL to IAD?

ASSISTANT: Sure, I will help you. May  I know your planned journey dates?

USER: I would like to depart on Jan 31st and return on Feb 2nd.

ASSISTANT: Can I have your connection limit?

USER: I need a connecting flight.

ASSISTANT: Let me know your class preference.

USER: I am comfortable with any class. Make sure that my depart time and return time must be afternoon.

ASSISTANT: Thank you for sharing the details. I am sorry to inform you that, there were no flights available that matches your requirements.

USER: Ok, not an issue. Anyways, thank you for the information.

ASSISTANT: Thank you for availing us.