Hi, I am Katherine Scott.
Hello, how can I assist you at this moment?
I would like to attend a music event at Los Angeles, can you help me to book a flight ticket from IAH to LAX?
Sure, I will help you with this. Can you please provide your journey dates?
I am travelling from Aug 16 to Aug 18.
Do you need any halt in this journey?
I need a direct flight.
Do you have any class preference for this trip?
I prefer business class.
Do you have any specific  depart and arrival time for this trip?
No, I don't have any specific time for this trip.
Katherine Scott, there are no flight services available with your preferences on this route.
No problem, thank you for the information.
Thank you for choosing us.