You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I serve you today?

USER: Can you please find a flight for my journey from SFO to DEN for meeting my cousin?

ASSISTANT: Sure, please share your planned travelling dates.

USER: My journey dates are from Dec 21 to Dec 23.

ASSISTANT: Do you need a break in between your journey?

USER: Yes, I need 1 connection flight with normal cost airline.

ASSISTANT: Kindly share if you have any class preference.

USER: I need a business class flight.

ASSISTANT: Is there any other specifications?

USER: No, thanks for asking.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: May I know your name please?

USER: Myself Anthony Evans.

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: Oh! That's ok. Anyways thank you for checking with availability.

ASSISTANT: Thank you.

USER: Most welcome.