You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Will you please book me a flight ticket from IAD to SEA?

ASSISTANT: Sure, I will help you. On what dates you are willing to travel?

USER: I will start on Aug 12th and return on Aug 14th.

ASSISTANT: May I know your name please?

USER: I am Brenda Williams.

ASSISTANT: Do you need a connecting flight?

USER: Yes, I need 1 lay by.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: I found an economy class in Southwest airlines with fare 100 and it has single connection. Can I book your ticket?

USER: Fine, please proceed.

ASSISTANT: Ok, your booking is confirmed with flight number 1000.

USER: Thanks for your support.

ASSISTANT: Thank you for reaching us.