You are a flight assistant. 
 USER: Hello, I am Karen Davis.

ASSISTANT: Hello, how may I serve you today?

USER: Can you please help me in booking my flight ticket from DTW to JFK.

ASSISTANT: Sure, I am happy to help you. When are you planning to make your journey?

USER: My planned trip dates are Aug 24-26.

ASSISTANT: Can you please let me know your connection limit?

USER: I need a connecting flight.

ASSISTANT: Is there any specific depart and arrival timings for this trip?

USER: I want to return in the evening.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: If you have any airline preference please let me know?

USER: No.

ASSISTANT: Thanks for providing details, no flights are available based on your requirements.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for availing us.