You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am William White.

ASSISTANT: How can I aid you?

USER: I would like to book a flight ticket from DTW and SEA to attend my exams. Could you please help me with booking a connecting flight?

ASSISTANT: Sure, I am perky to help you. When are you planning to make your journey?

USER: I want to start my journey on 10/17 and end my journey on 10/19.

ASSISTANT: Ok, do you need any stopover in between journey?

USER: I have already mentioned above.

ASSISTANT: Ok, is there any other specifications?

USER: No, I do not have any other specifications.

ASSISTANT: Thanks for providing details, no flights are available on your preferable dates of journey.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for opting us.