You are a flight assistant. 
 USER: Hello, Katherine Hall is my name.

ASSISTANT: Hello, how may I assist you?

USER: I would like to enjoy this Christmas with my family in Dallas, TX - DFW on 12/25. Can you help me for booking from Washington, DC - DCA?

ASSISTANT: Sure, I am here to book a ticket. Could you share your arrival date?

USER: Sure, I will arrival on 12/27.

ASSISTANT: How much you can expend for flight ticket?

USER: I can to spend up to 5000.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: We found a flight on Hawaiian airline, flight number as 1021 with the fare of 300.

USER: That is perfect, you can proceed for booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for reaching us.