You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I serve you today?

USER: I want to head to Detroit, to book a car at auto expo, can you help me to book a flight ticket?

ASSISTANT: Sure, please share your journey dates?

USER: I want to start on 01/03 & return on 01/05.

ASSISTANT: Ok, help me with your near by airport codes?

USER: My boarding is from Houston, TX- IAH, to reach MI - DTW.

ASSISTANT: Do you need any halt in between the journey?

USER: Yes, I need a halt.

ASSISTANT: We found a direct flight, are you comfortable?

USER: Sorry, I need a connecting flight. Please do not proceed for booking.

ASSISTANT: Sure, thank you for reaching us.

USER: Thanks for your information.