You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I have planed for the trip with my family members to Atlanta, can you please help me to book a flight ticket from Washington?

ASSISTANT: Sure, may I know your travel dates?

USER: Thank you. The planned travel dates are Aug 16 and Aug 18.

ASSISTANT: May I know your airport codes?

USER: The nearest airport codes are IAD and ATL.

ASSISTANT: Do you have any connection limit?

USER: I would like to travel in a connecting flight.

ASSISTANT: Any other requirements to be met?

USER: No, thanks for asking.

ASSISTANT: May I know your name?

USER: My name is Christine White.

ASSISTANT: United airlines flight- 1015 of price 100 with direct flight in economy class matches your given details, shall I proceed?

USER: I am ok with this flight details, please proceed with the ticket booking.

ASSISTANT: Ok, your flight ticket has been booked.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.