Hi.
user
Hello, how may I aid you today?
assistant
Can you please book a flight ticket from LAS to HOU?
user
Sure, please share me your trip dates.
assistant
My travelling dates are Dec 23 and Dec 25.
user
Do you need direct flight or connecting flight?
assistant
I need a connecting flight.
user
Is there any class preferences for you?
assistant
I want  a ticket in economy class.
user
May I know your airlines preferences for you?
assistant
I am comfortable with any airlines.
user
For booking, we need your good name. Please provide it.
assistant
My name is Emma Smith.
user
Sorry to say that, there are no flights available on the routes of your journey.
assistant
That's ok, thank you for the response.
user
Thank you for reaching us.
assistant