You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How can I help you?

USER: I need to travel from JFK to DTW, can you help me?

ASSISTANT: Sure, May I know the travelling dates?

USER: My trip dates are 05/02 and 05/04.

ASSISTANT: Do you have any connection limit?

USER: I need a connecting flight.

ASSISTANT: Is there any other requirements?

USER: Nothing more.

ASSISTANT: May I know your name?

USER: I am Margaret Evans.

ASSISTANT: Sorry, No flights found with your chosen dates.

USER: That's ok. Thank you for your help.

ASSISTANT: Thank you for opting us.