You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: Myself Patrick Davis. Could you please help me in flight ticket booking process from EWR to DTW?

ASSISTANT: Sure, please provide me your planned travel dates.

USER: Thank you for your response. I want to take off on Sept 01 and book my return ticket also on Sept 03.

ASSISTANT: Do you have any specific depart and return time preference?

USER: I would like to return in evening time.

ASSISTANT: Sure, do you have any other preference?

USER: I need 1 break in between my journey.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: Sorry to inform you that we didn't find any flight for your trip details.

USER: Oh! It's ok no problem. Thank you for your information.

ASSISTANT: Thank you for checking it with us, we hope to serve you better next time.