You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I am looking for a flight from PHX to IAD, can you please help me in booking?

ASSISTANT: Sure, please share your journey dates?

USER: I will start my journey on Aug 11 and return back on Aug 13.

ASSISTANT: Do you have any specifications?

USER: I need a connecting flight in economy class.

ASSISTANT: Is there any class preference?

USER: I prefer economy class.

ASSISTANT: Can I have your name to proceed further?

USER: My name is Katherine Anderson.

ASSISTANT: We found a Delta airlines, flight number-1009 connections-1 class-economy and fare is 100. Shall I proceed with the booking?

USER: Please proceed.

ASSISTANT: Sure, your ticket has been booked.

USER: Thank you for booking.

ASSISTANT: Thank you for reaching us.