You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am William Allen.

ASSISTANT: How may I aid you at this moment?

USER: Will you make a reservation from JFK to DTW?

ASSISTANT: Sure, please share your trip dates?

USER: My trip dates are on Sept 03 and Sept 05.

ASSISTANT: Ok, please wait for few minutes.

USER: Sure.

ASSISTANT: There are no flights found on your requested dates.

USER: Ok, no problem.

ASSISTANT: Thank you for choosing us.

USER: Thank you.