You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I am planning a trip to Houston, IAH. Can you please book me a ticket from Las Vegas, LAS.

ASSISTANT: Ok, may I know your journey dates?

USER: My preferable journey dates are from 01/31 to 02/02.

ASSISTANT: Ok, please let me know your name?

USER: My name is Thomas Green.

ASSISTANT: Thanks for your details, wait a minute let me check the flight.

USER: Sure, take your own time.

ASSISTANT: Thanks for your patience, I found a flight-1009 with connection 1 and price 100 of Spirit airline. Is it ok for you?

USER: Please reserve my ticket with this flight.

ASSISTANT: Ok, your ticket has been done with your name Thomas Green.

USER: Thank you for booking my ticket.

ASSISTANT: Welcome, have a good day.