You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, Good Evening.

USER: I'm Lisa Davis.

ASSISTANT: Ok Lisa, how may I help you?

USER: I will be attending a meeting with a professor in my son's university, can you book a ticket for me?

ASSISTANT: Sure, I will help you, please provide me your airport codes?

USER: My location codes will be from LAS to IAH.

ASSISTANT: Ok, please tell me your dates of journey?

USER: 01/09 to 01/11 are my travel dates.

ASSISTANT: Ok, there is a flight with airlines UA with the flight number 1004 is matching with your requirements.

USER: Ok, you can book the flight.

ASSISTANT: Ok, your ticket booking is confirmed successfully.

USER: Thanks for my reservation.

ASSISTANT: You are welcome. Thank you for consulting us. Have a happy journey.