You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Barbara Jones here. Can you please help me in booking a flight ticket from IAD to DFW?

ASSISTANT: Sure, may I know your planned travel dates?

USER: Sure, my travel dates are from June 05 to June 07.

ASSISTANT: Can you please share your connection limit?

USER: I need a connecting flight.

ASSISTANT: May I know your depart time?

USER: I would like to depart 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 for the information.

ASSISTANT: Thank you for opting us.