You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I serve you today?

USER: I want to book a flight ticket from LAS to meet my old friend in DTW, can you please help me in booking?

ASSISTANT: Sure, please share your planned travelling dates.

USER: 04/20 and 04/22 are my planned travelling dates.

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

USER: Yes, I need a break in between my journey.

ASSISTANT: Is there any other specifications?

USER: No.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

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: No issue. Thank you.

ASSISTANT: May I know your name please?

USER: Shirley Collins.

ASSISTANT: Thank you for approaching us.