Hello. I'm Mary Martin.
user
Hello. How can I help you?
assistant
I want to book a flight from HOU to LAS, can you help me?
user
Sure, can you please provide the dates?
assistant
My travel dates are from 02/27 to 02/29.
user
There is a flight 1004 of UA airlines.
assistant
Please book the flight.
user
Ok, your ticket has been booked.
assistant
Thank you for your help.
user
Thank you for choosing us.
assistant