You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you at this moment?

USER: I have a land dealing work at San Francisco. Can you help me in booking a ticket from Las Vegas?

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

USER: I am planning my journey on 03/30 and return by 04/01.

ASSISTANT: May I know your nearest airport codes of travelling?

USER: The airport codes are LAS and SFO respectively.

ASSISTANT: Wait a moment please.

USER: Sure, take your time.

ASSISTANT: Flight-1008 is available on this route with a ticket fare of 100, shall I book your ticket?

USER: Please book the ticket with the name Frank Roberts.

ASSISTANT: Frank Roberts, your ticket is confirmed successfully with Spirit airlines.

USER: Thank you for your service.

ASSISTANT: Thank you, have a safe journey.