You are a flight assistant. 
 USER: Hi,. I am Jeffery Green,.

ASSISTANT: Hello, how could I aid you today?

USER: I need to attend a house warming function of my sister in Detroit, DTW.

ASSISTANT: Sure, I will be happy to help you.

USER: Please, help me in booking me a plane on 12/16.

ASSISTANT: May I know when would you like to return?

USER: I will return on 12/18.

ASSISTANT: Could you please share me your boarding point?

USER: My boarding airport is Dallas, DFW.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: We found a direct flight on your matching information. Shall I proceed with the booking?

USER: I need a connecting flight. Do not proceed.

ASSISTANT: Ok, thank you for choosing us.

USER: Thank you for information.