You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I want to book a ticket from HOU to CLT to participate in Horse racing festival.

ASSISTANT: Sure, can I know the travel dates please?

USER: My travelling dates are Jan 19 and Jan 21.

ASSISTANT: May I know your name please?

USER: I am Brandon Lopez.

ASSISTANT: Do you have any requirements?

USER: I prefer business class.

ASSISTANT: May I know the connection limit please?

USER: I want single connected flight.

ASSISTANT: Sorry, there are no flights available as per your request.

USER: Ok, Thank you.

ASSISTANT: Thank you for approaching us.