You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: Myself William Evans. I want to book a flight ticket from ATL to IAD. Can you help me in that?

ASSISTANT: Sure, may I know your depart and return dates?

USER: My trip dates are May 6 to May 8.

ASSISTANT: Can you please share your connection limit?

USER: I need a connecting flight.

ASSISTANT: May I know your depart time?

USER: My depart time should be in the afternoon.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: Sorry, there are no flights found with your given details.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for opting us.