You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Carolyn Williams.

ASSISTANT: Williams, how may I guide you?

USER: I would like to visit resort which is at Washington, please help me in booking a ticket from IAD to IAD.

ASSISTANT: Sure, I am here to help you with that. When would you like to travel?

USER: My journey dates are 08/21 and 08/23.

ASSISTANT: Just a moment.

USER: Sure.

ASSISTANT: There is a flight with Southwest airlines and the ticket fare is 100 only. Shall I proceed for booking?

USER: Ok, please book my ticket.

ASSISTANT: Williams, your ticket is booked with the flight-1005.

USER: Thank you for your help.

ASSISTANT: You are most welcome.