You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you today?

USER: Please help me out in booking the ticket from IAH to MSP.

ASSISTANT: Sure, may I know your good name?

USER: Carolyn Martinez is my name.

ASSISTANT: Could I have your trip dates, please?

USER: My trip dates will be Mar 25 to Mar 27.

ASSISTANT: Please let me know your connection limit?

USER: I need a direct flight.

ASSISTANT: Do you have any more specifications?

USER: Business is my class preference.

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

USER: That's ok, thank you.

ASSISTANT: Thank you for opting us.