You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Frank Jackson. There is an emergency case which came to hearing in court, so I have to plead the case. Can you please find a flight for me and reserve the flight ticket for me from Las Vegas?

ASSISTANT: Sure, I will help you with that please mention your travelling dates to find a flight for you.

USER: Thank you for considering my request. My travel dates are 03/28 and 03/30.

ASSISTANT: Fine, may I know your airport codes so that I help you easily.

USER: The source and destination airport codes are LAS and IAH.

ASSISTANT: Wait for a while.

USER: Ok, I will wait for your response. Take your own time and provide me a best flight.

ASSISTANT: There is a connecting flight-1018 on UA airlines, would you like to proceed?

USER: This flight is matching to my requirements, so please go ahead and book the ticket.

ASSISTANT: Ok, booking is done with your information.

USER: Thank you for assisting me in booking a flight.

ASSISTANT: Welcome, have a safe trip.