You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Katherine Miller here.

ASSISTANT: How can I help you at this moment?

USER: I would like to visit Los Angeles, please help me in booking a ticket from PHX to LAX.

ASSISTANT: Sure, I will help you with this. Can you please provide your journey dates to proceed further?

USER: My planned travel dates are 05/28 and 05/30.

ASSISTANT: Wait a moment please.

USER: Sure, take your time.

ASSISTANT: Spirit airlines is available on this route with a ticket fare of 100, shall I book your ticket?

USER: Ok, please proceed for booking.

ASSISTANT: Katherine Miller, your ticket is booked in flight number 1003.

USER: Thank you for your assistance.

ASSISTANT: Thank you and have a safe journey.