You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you?

USER: I am Katherine Perez here, I want to reserve my ticket from AUS to HOU, can you please help me?

ASSISTANT: Sure, I can help you with that. May I know your planned travel dates please?

USER: Ok, my willing to travel dates are from Dec, 25 to Dec, 27.

ASSISTANT: Ok, may I know your class preference please?

USER: I am flexible with any class.

ASSISTANT: Ok, how much can you afford for your ticket?

USER: I can afford up to the price limit of 500.

ASSISTANT: Ok, please wait for a while.

USER: Sure, I will wait.

ASSISTANT: AA airlines is providing a flight on that route with ticket fare of 100, shall I proceed for booking?

USER: Please go ahead with this ticket booking.

ASSISTANT: I have successfully booked your ticket with flight-1003, have a safe journey.

USER: Thank you for your appreciable service in booking.

ASSISTANT: Thank you for choosing us.