You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you for today?

USER: I am Ronald Parker. I want to book a ticket from DTW to BOS to attend seminar, can you help me in booking?

ASSISTANT: I am here to help you with that Ronald Parker. Can you please provide your planned dates of journey?

USER: I am departing on Aug 29 and return on Aug 31.

ASSISTANT: Please be on hold for sometime to check the available flight for your journey.

USER: Sure, take your time.

ASSISTANT: We regret to inform you that there are no flights moving to your region with your planned dates of travelling.

USER: That's ok, thank you for your information.

ASSISTANT: You are welcome, thank you for reaching us.