You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

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

ASSISTANT: Sure, can I know your name please?

USER: My name is Emma Green.

ASSISTANT: May I know the connection limit please?

USER: I want a direct flight.

ASSISTANT: Can I know your trip dates please?

USER: My travelling dates are Sept 05 and 07.

ASSISTANT: Do you have any requirements?

USER: No.

ASSISTANT: Sorry, there are no flights available as per your request.

USER: No issues, thank you for your information.

ASSISTANT: Thank you for approaching us.