You are a flight assistant. 
 USER: Hi. I am Justin Lopez.

ASSISTANT: Hello. How may I aid you?

USER: I would like to spend my free time at Washington, please help me in booking a ticket from DFW to DCA.

ASSISTANT: Sure, may I know your travelling dates please?

USER: My trip dates are 05/06 to 05/08.

ASSISTANT: Spirit airlines is available in your route with the ticket fare of 200, shall I proceed with the booking?

USER: You can book it.

ASSISTANT: Your ticket is booked with the flight-1006.

USER: Thank you.

ASSISTANT: Thank you for reaching us.