You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you now?

USER: Can you help me to book a flight from DEN to DTW?

ASSISTANT: Ok, may I know your planned dates for this journey?

USER: My travelling dates are Nov 17 and 19.

ASSISTANT: May I know your connection limit?

USER: I prefer connecting flight.

ASSISTANT: May I know your name?

USER: My name is Carolyn Harris.

ASSISTANT: I am very sorry to say, there are no flights available for your journey.

USER: No issues, thank you for your time.

ASSISTANT: Thank you for choosing us.