You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, what kind of service you are expecting from us?

USER: Please book a ticket from Phoenix, AZ-PHX to Austin, TX-AUS.

ASSISTANT: Sure. How much fare you can spend?

USER: Price limit 5000.

ASSISTANT: Ok, on which dates you are willing to fly?

USER: My depart is on 03/29 and will return by 03/31.

ASSISTANT: An AA airline plane is available on your route with a fare of 100, shall I make it confirm for you?

USER: Please book connecting flight.

ASSISTANT: Ok, please share your name for booking process.

USER: My name is Nicholas White.

ASSISTANT: Successfully your booking is done with flight number 1000.

USER: Thanks.

ASSISTANT: Thanks for approaching us, have a good day.