Hi.
Hello.
I am Joshua Nelson.
How can I assist you?
I would like to travel Denver to meet my niece, can you book a flight ticket from LAS to DEN?
Ok Joshua, when are you planning your trip?
 I am planning the trip on 12/14 and after that I will catch the return flight on 12/16.
Please give me a minute, I will search for the availability of flights.
Ok, take your time.
I found a flight in AA airlines with price 100. Shall I book the ticket for you?
That's fine, please reserve this flight ticket.
Your ticket is confirmed and the flight number is 1006.
Thank you for assisting me.
Thank you for contacting us, have a safe journey.