You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today?

USER: Please help me to book a flight ticket from IAD to PHL.

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

USER: My journey dates are from Jan, 21 to Jan, 23.

ASSISTANT: Do you need any preferred connections?

USER: I need  a single connecting flight.

ASSISTANT: Do you have any other specifications to be met?

USER: No.

ASSISTANT: Can I have your name to proceed?

USER: Katherine Evans.

ASSISTANT: We have found a JetBlue airline, flight number-1012 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.

ASSISTANT: Thank you for reaching us.