Hello.
user
Hello. How can I aid you today?
assistant
I have an exam to attend, so could you help me to book a  ticket from DFW to OAK.
user
May I know your travelling dates?
assistant
My travel dates are Jan 19 and Jan 21.
user
Can I know your connection limit?
assistant
I would like to travel by connecting flight with business class.
user
May I know your name?
assistant
My name is Melissa Clark.
user
Sorry, no flights found on your route. Thank you for reaching us.
assistant