Hello.
user
Hello, how can I help you?
assistant
I need a direct flight, Could you please help me with booking a flight ticket?
user
Sure, please provide me your planned travel dates.
assistant
My travelling dates are Nov 17 and Nov 19.
user
Do you prefer either economy or business class?
assistant
I am comfortable with any class.
user
May I know your airport codes?
assistant
Sure, my airport codes are IAH and LAS.
user
Do you have any other preference?
assistant
Yes, I want to return in the evening.
user
Sure, may I know your name please?
assistant
I am Jeffery King.
user
Sorry, we didn't find any flight for your journey criteria.
assistant
No worries, thank you for the information.
user
Thank you.
assistant