Hello.
user
Hello, how may I aid you?
assistant
Can you please book the ticket from LAS to IAH? As I'm planning to visit Houston.
user
Sure, may I know your itinerary dates?
assistant
I would like to depart from my source location on 24th Feb and I want to return back by 26th Feb.
user
May I know your name?
assistant
My name is Patrick Mitchell.
user
Sorry Patrick Mitchell, no flights are available on your route.
assistant
Oh! That's ok, thank you for giving the information anyways.
user
Thank you for choosing us.
assistant