You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I guide you?

USER: I am Sandra Rodriguez. I would like to visit Disney land with my friends at Washington, please book the ticket from DFW to DCA.

ASSISTANT: Sure, can I know your preferable dates?

USER: My travelling dates are May 9 to May 11.

ASSISTANT: I found an economy class ticket in Hawaiian airlines with normal cost of 100 and it is a single connecting flight. Can I book your ticket?

USER: You can book it.

ASSISTANT: Your ticket is booked.

USER: Thank you for booking.

ASSISTANT: Thank you, have a good day.