You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Patricia Thomas.

ASSISTANT: How can I help you?

USER: I am looking for a flight from PHX to DFW, can you help me in booking the flight ticket?

ASSISTANT: Sure, I am here to do that. May I know your travel dates please?

USER: Sure, my planned travel dates are Aug 19 and Aug 21.

ASSISTANT: May I know your price limit?

USER: Yes, I am looking for a connecting flight under 500 price in a normal cost airlines.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Ok, please wait for a while.

USER: Sure, I will wait for your response.

ASSISTANT: UA airline is providing you the direct flight with economy class, shall I proceed?

USER: That's fine, please proceed in booking with this flight.

ASSISTANT: Sorry , it is a connecting flight and your ticket has been reserved with flight-1018.

USER: Thank you for your service.

ASSISTANT: Thank you for visiting us.