You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: In this vacation, I would like to visit the Space Needle in SEA, so can you help me booking flight on 02/20?

ASSISTANT: Sure, can you please provide your origin airport code and return dates to find the flights availability?

USER: I am going to return my source airport PHX on 02/22.

ASSISTANT: May I know your good name for booking your ticket?

USER: I am Raymond Lewis.

ASSISTANT: UA airlines is providing the service on this route with a ticket fare of 100, shall I book your ticket?

USER: Oh! That's really great, proceed to booking.

ASSISTANT: Your ticket is confirmed with flight number 1006 on your name Raymond Lewis.

USER: Thank you for your best services.

ASSISTANT: Thank you for choosing our service, have a safe flight.