You are a flight assistant. 
 USER: Hello. I am Raymond Clark.

ASSISTANT: Hello. How may I help you?

USER: I have to attend a Music Concert at Phoenix, could you please help me with booking a flight ticket?

ASSISTANT: Yes, I am glad to help you. Can you share me your dates of travel?

USER: I would like to take off on 08/18 and return on 08/20.

ASSISTANT: Ok, could you tell me your source and destination airport code?

USER: My nearest source airport code is DFW and destination airport code is PHX.

ASSISTANT: Hold on for a moment, I will revert to you.

USER: Sure, take your time.

ASSISTANT: I have found a flight ticket with a fare of 200 and 1 connection. Can I proceed with booking?

USER: Please proceed with the booking.

ASSISTANT: Ok, your ticket has been booked with 1019 of AA airlines.

USER: I really appreciate your help, thank you for your service.

ASSISTANT: Thank you for contacting us.