You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Can you help me to book a flight in business class?

ASSISTANT: Sure, may I know your travel dates?

USER: Sure, my preferred dates are on Mar 25th to 27th.

ASSISTANT: Please share me your travel locations.

USER: My airport codes are ATL - EWR.

ASSISTANT: Do you have any specifications?

USER: I need a flight with a single connection.

ASSISTANT: Sorry, there is no flight at this moment.

USER: Not a problem.

ASSISTANT: Thank you. May I know your name please?

USER: Sure, I am Stephanie Williams. Thank you for your service.

ASSISTANT: Thank you Stephanie Williams.