You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: I am Timothy Clark.

ASSISTANT: Nice meeting you Clark.

USER: I came for vacation, now I am going back to Washington DC -DCA, can you help in booking a cheapest flight from LAS?

ASSISTANT: Sure, please provide me your dates of going?

USER: My date of journey is on 03/14 to 03/16.

ASSISTANT: Ok Timothy, there is an airlines Hawaiian providing to your region with 200 budget. Can I proceed for booking?

USER: Proceed for booking.

ASSISTANT: Timothy Clark, your ticket has confirmed. Enjoy the flight journey.

USER: Thank you for helping me.

ASSISTANT: Thank you reaching us with your query.