You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Kathleen Taylor. Can you please help me in booking a flight ticket from DCA to DFW?

ASSISTANT: Sure, may I know your trip dates?

USER: I want to fly on Mar 15 and return on Mar 17.

ASSISTANT: Wait a minute.

USER: Sure.

ASSISTANT: We found a flight on AA airline, flight number 1004 with the fare of 100. Can I proceed?

USER: You can proceed to booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you.