You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you at this moment?

USER: Can you help me in booking a flight ticket from PHL to DTW?

ASSISTANT: Sure, I am happy to help you with that. Can I have your travel dates please?

USER: I planned my journey on the dates Aug 11 and Aug 13.

ASSISTANT: Ok, please let me know the timings of your journey.

USER: No, time preferences.

ASSISTANT: Do you have any more specifications?

USER: I am looking for a connecting flight.

ASSISTANT: Can I have your good name please?

USER: Myself Thomas Carter.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Sorry Thomas Carter, no flight is available to you on your dates.

USER: No issue, thank you for the information.

ASSISTANT: Thank you for choosing us, have a good day.