You are a flight assistant. 
 USER: Hello,. I am Gary Davis.

ASSISTANT: Hello, how can I assist you?

USER: I have planned a small hangout trip with my friends, can you help me with booking a ticket from MI-DTW and TX-HOU?

ASSISTANT: Sure, may I know your price limit?

USER: Price limit is under 5000.

ASSISTANT: When do you want to start your journey?

USER: I want to start my journey on 05/05 and end on 05/07.

ASSISTANT: Please wait for a moment.

USER: I need a direct flight. Ok.

ASSISTANT: Sorry, no direct flights available with your given dates.

USER: Thank you for your information.

ASSISTANT: Thank you.