You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: Please book a flight ticket from SFO to JFK.

ASSISTANT: Sure, we are glad to help you in booking. Do you need a break in between your journey?

USER: Yes, I need a break.

ASSISTANT: Please share if you have any class preference.

USER: I am comfortable with any class.

ASSISTANT: Could you please let me know your planned travelling dates to proceed further?

USER: June, 14 and June, 16 are my travel dates.

ASSISTANT: May I know if you have any other comforts in between your journey?

USER: I need to depart at evening time.

ASSISTANT: Can I have your name please?

USER: Jeffrey Carter here.

ASSISTANT: Thank you for sharing your journey details, please wait a moment.

USER: Sure.

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: It's ok, thank you for the information.

ASSISTANT: Thank you for approaching us.