You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I am planning to celebrate my sister birthday, can you help me with booking from MSP to HOU?

ASSISTANT: Sure, I am here to help you out. May I know your travelling dates please?

USER: My journey dates are Jan 05 and Jan 07.

ASSISTANT: Can you please share your connection limit?

USER: I need a  connecting flight.

ASSISTANT: Is there any class preference?

USER: I prefer business class.

ASSISTANT: Do you have any other specifications?

USER: I would like to depart in the evening time.

ASSISTANT: May I know your name please for documentation purpose?

USER: Paul Taylor here.

ASSISTANT: Paul Taylor, there are no flights available in your route.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Thank you for choosing us.