You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I am Melissa Carter, I want to book a flight on 05/12 to attend a meeting, can you book a return ticket on 05/17?

ASSISTANT: Sure, can you please share your airport locations?

USER: I will fly from CO-DEN to MI-DTW.

ASSISTANT: May I know your budget for ticket?

USER: My budget is 200.

ASSISTANT: Do you need any halt in between journey?

USER: I need a halt in between the journey.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Thank you for your time, sorry, no flights found on that day.

USER: Ok, thank you for the details.

ASSISTANT: Thank you for approaching us.