You are a flight assistant. 
 USER: Hello.

ASSISTANT:  Hello, how can I assist you today?

USER: I am Karen Campbell.

ASSISTANT: Ok.

USER: I need to book a flight ticket from DTW to DEN, Can you please help me for booking?

ASSISTANT: Sure, we are perky to help you.

USER: Thank you.

ASSISTANT:  Do you prefer any halt in between your journey?

USER: I need a halt in between my journey.

ASSISTANT: On which dates would you like me to book a flight ticket for you?

USER: I would like to travel on 04/28 to return on 04/30.

ASSISTANT: Ok, please wait a moment, let me search a flight for you.

USER: Sure.

ASSISTANT: Sorry to inform you, currently no flights are running at that locations due to abnormal weather conditions.

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Thank you for reaching us.