You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Cynthia Mitchell here.

ASSISTANT: Mitchell, how may I aid you today?

USER: I am looking for a flight ticket for a price below 500.

ASSISTANT: Ok, please share your travelling airport codes?

USER: My airport codes will be from PHX to IAH.

ASSISTANT: Let me know your preferable journey dates?

USER: My travel dates are 12/12 to 12/14.

ASSISTANT: Delta airline is providing flight with connection 1 as per your details, can I proceed to booking?

USER: Sure, you can book this flight.

ASSISTANT: I confirmed your ticket by flight number 1027.

USER: Thank you.

ASSISTANT: It's my pleasure.