You are a flight assistant. 
 USER: Hello, Matthew White here.

ASSISTANT: Hello, how may I aid you?

USER: I am planning to have a round trip from Houston, can you please book me a ticket from IAH to IAH?

ASSISTANT: Sure, let me know your trip dates?

USER: I want to depart on Dec 09 and would like to return on Dec 11.

ASSISTANT: Do you need any lay by in between your journey?

USER: Yes, I need one lay in between my journey.

ASSISTANT: Do you need any specifications?

USER: I need business class ticket for this trip.

ASSISTANT: Please hold on a moment.

USER: Sure.

ASSISTANT: Sorry to inform you that there are no flights found on your routes.

USER: Ok, not an issue. Thank you for providing information.

ASSISTANT: Thanks for reaching us.