You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help 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: Please provide me your itinerary travel dates.

USER: I would like to depart on July 1st and return on July 3rd.

ASSISTANT: May I know if you have any airline preference?

USER: No, I am looking for a economy class ticket.

ASSISTANT: Is there any connection limit?

USER: I am looking for a connecting flight.

ASSISTANT: Are there any more preferences that you want to avail?

USER: Make sure that my depart time must be evening.

ASSISTANT: May I know your name please?

USER: I am Pamela Johnson.

ASSISTANT: Pamela Johnson. I regret to inform that there are no connecting flights on your route.

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

ASSISTANT: Thank you for reaching us.