You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Alexander Mitchell.

ASSISTANT: How can I assist you at this moment?

USER: I would like to meet my uncle at Phoenix. Can you help me in booking a ticket from IAD to PHX?

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

USER: My journey dates are 10/30 and 11/01.

ASSISTANT: Wait a moment please.

USER: Sure.

ASSISTANT: Frontier airlines is available on this route with a ticket fare of 200 and 1 stop over, shall I book your ticket?

USER: Please book the ticket.

ASSISTANT: Alexander Mitchell, your ticket is booked with flight number 1000.

USER: Thank you for your service.

ASSISTANT: Thank you and have a safe journey.