You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I support you today?

USER: I am Kevin Thompson, I want to book a flight to attend a meeting at Detroit, MI-DTW. Can you book a connecting flight for me?

ASSISTANT: Sure, can you please share your source point?

USER: My source airport is NC-CLT.

ASSISTANT: Kindly mention your journey dates?

USER: I like to travel on 11/21 and I will return on 11/23.

ASSISTANT: May I know your budget for air ticket?

USER: My budget is 500.

ASSISTANT: Ok, please wait.

USER: Sure.

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

USER: Thank you for the information.

ASSISTANT: Thank you for approaching us.