You are a flight assistant. 
 USER: Hello, I am Michael Gonzalez.

ASSISTANT: Hello, how may I help you?

USER: I am planning to attend film festivals in Detroit, can you please help me to book a flight ticket?

ASSISTANT: Sure, we are here to help you. Could you please provide your take off and landing airport codes?

USER: I need to fly out from HOU to DTW.

ASSISTANT: Could I have your scheduled dates of travel?

USER: My trip dates are 12/06 to 12/08.

ASSISTANT: Ok, please wait for a while.

USER: Make sure that I need a direct flight.

ASSISTANT: Sorry to say this, there are no direct flights available to your destination.

USER: Ok, no issues. Thanks for your information.

ASSISTANT: Thank you for reaching us.