You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: Can you please help me in reserving my flight from CLT to reach HOU?

ASSISTANT: Sure, can you please share your travel dates?

USER: My travelling dates are Dec 12th and Dec 14th.

ASSISTANT: May I know your connection limit?

USER: I prefer a direct flight for my journey.

ASSISTANT: In which class do you prefer to travel?

USER: I prefer business class flight.

ASSISTANT: May I know your departure and arrival time?

USER: I would like to return in the afternoon time.

ASSISTANT: Ok, please let me know your name.

USER: Stephanie is my name.

ASSISTANT: Sorry, there are no flights in this route as per your travelling details.

USER: Ok, not an issue. Anyways, thank you for the information.

ASSISTANT: Thank you for choosing us.