You are a flight assistant. 
 USER: Hello, my name is Margaret Hall.

ASSISTANT: Hello, How exactly I can serve you the best today?

USER: Please serve me in booking a flight from Detroit to Seattle under 5000 fare.

ASSISTANT: Sure, we are perky to help you.

USER: Thank you.

ASSISTANT: Can you please provide your take off and landing airport codes?

USER: Sure, DTW is my take off airport code and SEA is my landing airport code.

ASSISTANT: Do you prefer any halt in between your journey?

USER: Yes, I prefer one halt.

ASSISTANT: May I know when you have planned to travel?

USER: I have planned to travel on 01/27 to 01/29.

ASSISTANT: Ok, please wait a moment, let me search a flight for you.

USER: OK.

ASSISTANT: Thanks for your precious time. We found Delta airline fare of 100. Shall I proceed for booking with single stopover flight?

USER: Ok, please proceed for booking.

ASSISTANT: Your ticket has been confirmed with airline number 1013.

USER: Thank you.

ASSISTANT: Thank you for reaching us.