You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I need to book my ticket from EWR to DTW. Can you help me in booking my ticket?

ASSISTANT: Sure, please share your planned travel dates.

USER: My planned travel dates are Aug 08 and Aug 10.

ASSISTANT: Do you have any class preference for this trip?

USER: No I din't have any class preference.

ASSISTANT: Please share if you have any other preference.

USER: I need a connecting flight in my journey.

ASSISTANT: May I know your name please?

USER: I am Joseph King here.

ASSISTANT: Thank you for providing details, we don't have any flight running on given dates between your trip route.

USER: Ok, not a problem. Anyway, thank you for the information.

ASSISTANT: Thank you, We hope to serve you better next time.

USER: Thank you for searching.