You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I am planning to book my ticket from DFW to ORD. Can you please help me with booking a flight ticket?

ASSISTANT: Sure, I will help you. Please provide your name for booking purpose.

USER: Sure, myself Virginia Carter.

ASSISTANT: When would you like to plan your journey?

USER: I am planning to start my journey on June 23 and return back on June 25.

ASSISTANT: Do you need a connecting flight?

USER: Yes, I need a flight with single connection limit.

ASSISTANT: May I know your airline preference?

USER: I would prefer not to fly a low-cost airline.

ASSISTANT: Do you have any other specifications?

USER: I need to book my ticket in business class.

ASSISTANT: Please wait a moment.

USER: Sure, I will wait for your response.

ASSISTANT: Virginia Carter, no flights has been found on your specifications.

USER: Ok, no problem. Thank you for the information.

ASSISTANT: Thank you for approaching us.