You are a flight assistant. 
 USER: Hi, I am Richard Evans.

ASSISTANT: Hello, how can I help you?

USER: I am planning to book a flight from DTW to EWR, so please help me in booking a flight.

ASSISTANT: Sure, I will help you. May I know on what dates would you like to travel?

USER: My planned dates are on Jan 28th to 30th.

ASSISTANT: Do you require any stopovers in your journey?

USER: Yes, I need it.

ASSISTANT: Do you have any specifications?

USER: I need a flight in business class.

ASSISTANT: Sorry, there are no flights found on your travel dates.

USER: No issues, thank you.

ASSISTANT: Thank you for approaching us.