Hi.
user
Hello. How can I assist you  now?
assistant
I would like to book a ticket from LAX to IAH, can you please help me with that?
user
Sure, I am happy to help you with that. Can I have your travel dates please?
assistant
The travel dates are from 07/28 to 07/30.
user
Ok, please let me know your good name.
assistant
Scott Smith here.
user
Do you have any specifications?
assistant
I prefer business class.
user
Sorry Scott Smith, no flight is available to you on your dates.
assistant
That's ok, thank you for your help.
user
Thank you for choosing us, have a good day.
assistant