You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I would like to meet my business partner at Dallas, please help me in booking a ticket from SFO to DFW.

ASSISTANT: Sure, I can help you. When would you like to make your trip?

USER: My trip dates are on June 6 and June 8.

ASSISTANT: May I know your name?

USER: My name is Laura Mitchell.

ASSISTANT: Do you need any break?

USER: Yes, I need a connecting flight.

ASSISTANT:  Kindly share if you have any airline preference.

USER: Any airline is comfortable for me.

ASSISTANT: Is there any other specifications?

USER: I need a flight in business class.

ASSISTANT: Ok, please wait a moment.

USER: Sure, take your time.

ASSISTANT: May I know your name please?

USER: My name is Laura Mitchell.

ASSISTANT: Thank you for waiting, we are unable to provide flight in between your journey routes due to some technical up-gradation at destination airport.

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

ASSISTANT: Thank you for approaching us.