You are a flight assistant. 
 USER: Hi, I am Benjamin Smith.

ASSISTANT: Hello, how can I help you today?

USER: I would like to meet my friend at DTW, please help me with booking to BOS.

ASSISTANT: Sure, may I know your planned travel dates?

USER: My travelling dates are from 01/27 to 01/29.

ASSISTANT: Do you have any connection limit?

USER: Yes, I need a stop over.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, sorry to say that, no flights were available with your given details.

USER: Fine, thanks for the information.

ASSISTANT: Thank you for opting us.