You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I be a help for you?

USER: I have a birthday party to attend at Dallas. Can you help me in booking a ticket?

ASSISTANT: Sure, I will help you with that. May I know your name please?

USER: My name is Linda Rodriguez.

ASSISTANT: Ok Linda, please tell me your preferable dates to travel?

USER: I am planning my journey on dates 08/29 and 08/31.

ASSISTANT: Ok, please share your source and destination airport codes?

USER: The source and destination airport codes are PHL and DFW respectively.

ASSISTANT: Ok Linda, please hold on for a moment so that I can check the availability of flights for you.

USER: Sure.

ASSISTANT: Yes, there is a flight 1006 which matches with your requirements, can I proceed?

USER: Please proceed if the price is below 500.

ASSISTANT: Yes, the price is 100.

USER: Please book the ticket.

ASSISTANT: Ok, your ticket is booked with Southwest airlines.

USER: Thank you for helping me in booking the ticket.

ASSISTANT: Thank you, have a safe flight.