You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I be your helping hand today?

USER: Shirley Roberts here.

ASSISTANT: Thanks for providing your name.

USER: I would like to prefer a flight with lay-by option for my business trip to Las Vegas. Can you book the flight ticket?

ASSISTANT: Sure, we are ecstatic to help you. Can you please forward your journey dates that you wish to travel?

USER: The travel dates are from 09 Sept to 11 Sept.

ASSISTANT: What is the airport, that you want to start from?

USER: The airport codes are from PHX to LAS.

ASSISTANT: Is there any another specifications on your trip, so that I can arrange like that only.

USER: No, that is it.

ASSISTANT: Ok, please wait a moment. let me search a flight for you.

USER: Sure.

ASSISTANT: Thank you for your time, we have found a Frontier airline, flight number-1003, connections-1 and ticket-200. Would you like me to book the ticket?

USER: I am ok with the airlines. You can book the flight ticket.

ASSISTANT: Sure, a seat has been reserved successfully for a economy class flight.

USER: Thank you.

ASSISTANT: My pleasure, I hope you will enjoy this airline.