You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you today?

USER: I am Anthony Mitchell. I want to attend my examination in Houston, so can you book a ticket from PHX to IAH. My travelling dates are from 09/15 to 09/17.

ASSISTANT: Ok, hold on a moment I will get back to you.

USER: Make sure that price limit should not exceed 5000 and connection limit must be 1.

ASSISTANT: Thanks for holding on, flight 1012 with Southwest airlines matches your requested dates.

USER: Ok, book the ticket.

ASSISTANT: Ok, your ticket has been confirmed.

USER: Thank you for your help.