You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Myself Paul Mitchell. I need to attend a summit in Houston regarding child labour issue. So please help me with flight ticket booking from Las Vegas.

ASSISTANT: Sure, I am here to help you. Could you please provide your travelling dates to search for the flight?

USER: Thank you. I need to travel on dates of 07/10 and 07/12.

ASSISTANT: Ok, may I know the exact codes of airport on which route you are planning to travel?

USER: Sure, I would like to travel from LAS to IAH.

ASSISTANT: Ok, please wait a moment I will check for the best services on your route and let you know.

USER: Sure, I wait for your response.

ASSISTANT: Ok, there is a flight 1026 in Southwest airline matching your details with price 100. Shall I proceed?

USER: I am comfortable with this details. You can proceed with booking.

ASSISTANT: Ok, your booking is processed.

USER: Thank you for assisting me with flight ticket booking.

ASSISTANT: Thank you for contacting us, have a great journey.