You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: Can you please help me to book a flight ticket from PHX to IAH?

ASSISTANT: Sure, can you please provide your journey dates?

USER: My journey dates are Jan 25 to Jan 27.

ASSISTANT: Are you looking for any preferred connections?

USER: I need a direct flight.

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

USER: I want to depart in the morning.

ASSISTANT: Let me know your name to proceed further?

USER: David Clark.

ASSISTANT: We found a Southwest airlines, flight number-1027 connections-1 class-economy and fare is 100. Shall I proceed with the booking?

USER: Ok, please proceed.

ASSISTANT: Sure, your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for reaching us.