You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I respond to your request?

USER: I am going to give send off to my brother at Seattle SEA, so can you help me in booking my flight ticket from IAD?

ASSISTANT: Sure, we are mirthful to help you. Can you please share your travel dates that you have planned?

USER: I am planning to start on July 9th, my return date will be July 11th.

ASSISTANT: Do you need any break in between journey?

USER: I prefer a stop over flight.

ASSISTANT: May I know your good name please?

USER: I am Gregory Walker.

ASSISTANT: Is there any another specifications on your trip, so that I can arrange like that only.

USER: No, thank you for asking.

ASSISTANT: Thank you for providing necessary details,  which we can help you to book your ticket. Please be on hold let you know the information.

USER: Sure, I will be waiting.

ASSISTANT: Thanks for waiting, we are pleased to inform you that we have found a Frontier airline, flight number-1029 connections-1 and price limit is 100. Shall I reserve a ticket for this airline?

USER: Its a perfect flight, please go ahead.

ASSISTANT: Sure, a seat has been reserved successfully for a economy class flight.

USER: Thank you for booking my flight ticket.

ASSISTANT: Thank you for your presence. We hope to serve you again.