You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Kathleen Moore.

ASSISTANT: How can I help you at this moment?

USER: Can you please book a ticket from PHL to DTW?

ASSISTANT: Sure, I am here to help you. Can you please provide your journey dates?

USER: My planned trip dates are July 11 and July 13.

ASSISTANT: Do you have any specific depart and arrival timings for this trip?

USER: I would like to return in the evening.

ASSISTANT: May I know your connection limit for this journey?

USER: I need a stopover in between my journey.

ASSISTANT: Do you have any other specifications for this trip?

USER: No.

ASSISTANT: Kathleen Moore, there are no flight services are available on this route on your provided dates.

USER: Ok, not a problem. Thank you for your information.

ASSISTANT: Thank you for contacting us.