You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Can you aid me to book a flight ticket from DTW to BOS?

ASSISTANT: Sure, I am here to help you out. May I know your travel dates please?

USER: I planned my trip on the dates Feb 21 and Fe 23.

ASSISTANT: Can you please share your connection limit?

USER: Sure, I am looking up for a connecting flight.

ASSISTANT: Do you have any other specifications?

USER: No, other specifications.

ASSISTANT: May I know your name please?

USER: Myself Charles Allen.

ASSISTANT: Charles Allen, there are no flights available in your route.

USER: No issue, anyway thank you for checking.

ASSISTANT: Thank you for choosing us.