Hi.
Hello, How can I best serve you today?
Could you please book a flight ticket from HOU to OAK?
Sure, can you please mention your depart and arrival dates of your journey?
My trip dates are Nov 19 and Nov 21.
Do you like to go with a connecting or direct flight?
I need a direct flight.
May I know if you prefer to have any other comforts in your journey?
I prefer a normal cost airline.
Can I know your good name to proceed further?
I am Stephen Baker.
Sorry, no flights are available in this route as per your requested dates.
Not  a problem, thank you for the information.
Thank you for choosing us.