You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: Can you please help me with booking a flight ticket from IAH to MSP?

ASSISTANT: Sure, let me know your travelling dates.

USER: My travelling dates are from Dec 16-18.

ASSISTANT: Do you want connecting flight or direct flight?

USER: I would be comfortable with single stop over.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: May I know your name please?

USER: Justin Gonzalez here.

ASSISTANT: Sorry, there are no flights found with your given details.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for opting us.