Hi.
user
Hello, How can I best serve you today?
assistant
Could you please book a flight ticket from LGA to DFW?
user
Sure, can you please mention your depart and arrival dates of your journey?
assistant
My trip dates are Aug 11 and Aug 13.
user
Do you like to go with a connecting or direct flight?
assistant
I need a connecting flight.
user
May I know if you prefer to have any other comforts in your journey?
assistant
I prefer a business class.
user
Can I know your good name to proceed further?
assistant
I am Elizabeth Mitchell.
user
Sorry, no flights are available in this route as per your requested dates.
assistant
Not a problem, thank you for the information.
user
Thank you for choosing us.
assistant