You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how best can I assist you?

USER: I would like to meet my cousins at Detroit, please help me in booking a ticket from BOS to DTW.

ASSISTANT: Sure, when do you want to start and return on?

USER: My planned travel dates are on Mar 5 and Mar 7.

ASSISTANT: Do you need a connecting flight?

USER: Yes, I need a connecting flight.

ASSISTANT: Do you have any other specifications?

USER: No more specifications.

ASSISTANT: Can I know your good name?

USER: My name is Karen Gonzalez.

ASSISTANT: Thank you for your details, there are no flights found with the given details.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Thank you.