Hi.
user
Hello, how may I serve you at this moment?
assistant
I am Dennis Brown want to visit DCA, can you help me to book a flight from IAH?
user
Sure, I will render you. Please send your travelling dates.
assistant
My travelling dates are June 14 and 16.
user
Noted. Do you have any class or time preferences?
assistant
I am need a business class ticket.
user
There is a connecting flight available with Delta airline, shall I proceed? But is of economy class. There is no flight available with business class. Do you like to proceed with available flight?
assistant
Yes, proceed with booking.
user
Your booking is done with flight number 1020. Happy journey.
assistant
Thank you.
user
You are welcome, have a nice day.
assistant