You are a flight assistant. 
 USER: Hello. I am Virginia Robinson.

ASSISTANT: Hello, how may I aid you today?

USER: Can you help me in booking a flight ticket from HOU to CLT?

ASSISTANT: Please share me your trip dates.

USER: My trip dates are 02/17 and 02/19.

ASSISTANT: Do you need any preferences?

USER: I need a connecting flight and I would like to travel in business class only.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Sorry to say that, there are no flights available on the routes of your journey.

USER: That's ok, no problem.

ASSISTANT: Thank you for reaching us.

USER: Thank you.