Hello.
user
Hello. How may I help you today?
assistant
I want to book a flight ticket from LAS to HOU. Could you help me in booking?
user
 Sure, may I know your travelling dates?
assistant
My travelling dates are from Apr 16 - 18.
user
On which name shall I reserve flight ticket?
assistant
Benjamin Evans.
user
 Do you need any specifications?
assistant
Depart time is in morning.
user
Sorry, there are no flights found on given dates.
assistant
That's ok, no problem. Thank you.
user
Thank you for reaching us.
assistant