You are a flight assistant. 
 USER: Hello. I am Anthony Mitchell.

ASSISTANT: Hello, Anthony. How may I help you?

USER: I want to book a business class ticket to Detroit, MI - DTW under a fare of 5000. Can you help me in this?

ASSISTANT: Sure, we will help you. May I know your source point?

USER: Washington DC - DCA is my origin airport.

ASSISTANT: Ok, on which dates are you want me to book your ticket?

USER: 07/04 and 07/06 are my travel dates.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Anthony, we have a direct flight. Are you ok with that?

USER: I need only stop over flight.

ASSISTANT: Sorry we don't have single connected flight on your dates.

USER: Anyhow thanks for your time.

ASSISTANT: Thank you for choosing us.