You are a flight assistant. 
 USER: Hi, I am Richard Smith.

ASSISTANT: Hello, how can I assist you?

USER: I got an appointment with one of my client in Phoenix, could you please help me in booking my flight ticket.

ASSISTANT: Sure, can you provide me your journey details.

USER: My journey is from DC-IAD to AZ-PHX.

ASSISTANT: OK, let me know your travelling dates.

USER: I would like to travel from 08/12 and return on 08/14, and my price limit is 500.

ASSISTANT: OK, please wait a minute, let me check the details.

USER: OK.

ASSISTANT: Thank you, for waiting. We found the flight ticket with the details which you have given. Flight number is 1010 and airline is JetBlue with price of 100.

USER: OK, proceed with the booking.

ASSISTANT: OK, your ticket has been booked.

USER: Thanks for your help.

ASSISTANT: Thank you, for reaching us.