You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you today?

USER: I have to attend my brother's marriage on 12/07, can you please help me to book my flight ticket from LAS to DCA?

ASSISTANT: Sure, can you please provide your planned journey dates?

USER: Sure, I will depart on 12/06 and return on 12/08.

ASSISTANT: Can you please provide your name for documentation purpose?

USER: My name is Eric Taylor.

ASSISTANT: Frontier airlines is available on this route with a ticket fare of 200, shall I book your ticket?

USER: Sure, please proceed.

ASSISTANT: Eric Taylor, your ticket is confirmed with flight number 1023.

USER: Thank you so much.

ASSISTANT: Thank you, have a safe journey.