You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What can I do for you?

USER: I want to visit Washington.Can you please help me for booking the flight ticket from DC-DCA to DC-IAD?

ASSISTANT: Sure, may I know your name please?

USER: Sure, my name is Timothy Mitchell.

ASSISTANT: Ok, please mention your trip dates?

USER: The trip dates are from 05/29 to 05/31.

ASSISTANT: There is a flight for you with 1000 in Hawaiian airline.

USER: May I know the price?

ASSISTANT: Sure, the price limit is 100.

USER: Ok, please book the ticket.

ASSISTANT: Ok, your ticket has been booked.

USER: Thank you for helping me out.

ASSISTANT: Thank you for reaching us.