Hi.
user
Hello, how may I serve you?
assistant
 I have a program to attend, so could you help me to book a ticket from HOU to DCA.
user
Sure, may I know your name?
assistant
I am Timothy Mitchell.
user
When are you planning to make your trip?
assistant
My trip dates are Jun 28 to Jun 30.
user
How many connections do you need?
assistant
I need a connecting flight.
user
Is there any class preference?
assistant
I prefer a business class.
user
Do you need any specifications?
assistant
No.
user
Thanks for providing your details, currently there are no flights going on your way.
assistant
No issue, thank you.
user
Thank you for reaching us.
assistant