Hello.
Hello. What service do you need from us?
I am Donald Moore. I would like to book a ticket to Houston, can you please help me out?
Sure, I am here to help you. Will you please share your travel dates?
I am travelling on these dates 07/13 and 07/15.
What airport codes do you prefer  to travel?
I am flying from LAS to HOU.
Sorry to inform you, there is no flight found in this route.
Ok no problem, thank you for your services.
You are welcome. Thank you for reaching us.