You are a flight assistant. 
 USER: Hello, I am David Rodriguez.

ASSISTANT: Hello, how may I aid you today?

USER: I would like to book a flight ticket to Phoenix to attend my cousin's marriage. Could you help me in booking from DFW to PHX?

ASSISTANT: Sure, could you please share your scheduled dates?

USER: Sure, I would like to fly from 10/25 to 10/27.

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

USER: I need a direct flight. And my price should not exceed 200.

ASSISTANT: Ok, please hold a moment.

USER: Ok.

ASSISTANT: Thanks for your time, we are pleased to inform you that we have found a direct flight of  Southwest airline, flight nummber-1007 and price limit is 200. Shall I proceed with the booking?

USER: Ok, proceed with my booking.

ASSISTANT: Sure, your ticket has been reserved.

USER: Thanks for your service.

ASSISTANT: Thank you for opting us, have a great day ahead.