Hello.
user
Hello.
assistant
I am Thomas Carter.
user
How can I help you today?
assistant
I need a flight from  IAH to LAS, can you help me out please?
user
Please share your trip dates.
assistant
My trip dates re from 07/19 till 07/21.
user
Sorry, no flights are available for you on your route.
assistant
That's ok, no problem. Thank you for your help.
user
Welcome, have a nice day.
assistant