You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what can I do for you today?

USER: I need to reach Houston city, to meet my clients. Can you check the flight ticket for me?

ASSISTANT: Sure, let me know your trip dates please?

USER: Thank you. The preferred trip dates are Dec 03 and Dec 05.

ASSISTANT: May I know your airport codes?

USER: The source and destination airport codes are HOU and IAH.

ASSISTANT: Is there any airline preference?

USER: I didn't have any airlines preference but I prefer to travel in a business class.

ASSISTANT: Do you need a break in between your journey?

USER: I prefer to travel in a single connecting flight.

ASSISTANT: Any specific timings you have for travelling?

USER: No, I didn't planned any specific timings to travel. Please proceed with the available flight.

ASSISTANT: Please mention your name to proceed further.

USER: I am Ronald White.

ASSISTANT: Sorry, no flights found as per your requirement.

USER: It's ok, not a problem with that. Thank you for checking the flight availability.

ASSISTANT: Thank you for contacting us.

USER: Most welcome.