You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Donald Hill.

ASSISTANT: How may I assist you Donald Hill?

USER: I am planning to have a business meeting in Phoenix.Can you help me to reach PHX on 05/12?

ASSISTANT: Sure, I am to help you with this. Can you please provide your origin airport code?

USER: I would like to start my journey from CA - LAX.

ASSISTANT: May I know on which date you would like to return from PHX?

USER: I am planning to return on 05/14.

ASSISTANT: Hold on a moment please, let me check the flights availability on this route.

USER: Sure, take your time.

ASSISTANT: Thank you for your patience, I have found a service with Southwest airlines with a ticket fare of 100, shall I book your ticket?

USER: Yes, book this ticket for me.

ASSISTANT: Your ticket is confirmed with flight number 1000.

USER: Thank you for your help.

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

USER: Good service.

ASSISTANT: Thank you.