You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Can you please help me in booking the flight ticket from DCA to IAH?

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

USER: My travel dates are Aug 12 and Aug 14.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: Would you like to travel in a connecting flight or a direct flight?

USER: I need a single connection.

ASSISTANT: Do you have any other speciifcations?

USER: No.

ASSISTANT: May I know your good name please?

USER: Patricia Carter.

ASSISTANT: There is a flight available on your requested dates from American airlines with arrival time 13 PM and depart time 20 PM, shall I confirm your booking?

USER: Please proceed.

ASSISTANT: Your ticket is booked with flight 1008.

USER: Thank you for the help.

ASSISTANT: You are welcome.