You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello. How may I assist you?

USER: Can you please help me in booking my flight ticket from DFW to LGA?

ASSISTANT: Sure, may I know your travelling dates please?

USER: My travel dates are Feb 28 to Mar 01.

ASSISTANT: Can you please share your connection limit?

USER: I would be comfortable with single stop over.

ASSISTANT: Do you have any other specifications?

USER: I prefer to fly in business class.

ASSISTANT: On what name you want me to book a flight ticket?

USER: Myself, Virginia Lewis.

ASSISTANT: Virginia Lewis, there are no flights available in your route with your preferences.

USER: Ok, no issues. Thank you for your service.

ASSISTANT: Thank you for choosing us.