You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What service that you are looking from our agency?

USER: I want to attend for a Film festival in Phoenix. Can you please make a reservation?

ASSISTANT: Sure, I will help you with your request. Can you please provide your preferable departure and arrival dates of travelling?

USER: I would like to depart on Sept 15 and return on Sept 17.

ASSISTANT: May I know your regional airport codes for booking?

USER: Sure, I am boarding from DTW to reach PHX.

ASSISTANT: Any connection limit do you have?

USER: I am comfortable with any flight.

ASSISTANT: Do you have any other preferences?

USER: Make sure that I need my return flight time is afternoon.

ASSISTANT: May I know your name please?

USER: Sure, my name is Shirley Lopez.

ASSISTANT: Please be on hold to check the flights.

USER: Sure.

ASSISTANT: We are apologize that, there are no flights running towards your region with your requested preferences of travelling.

USER: That's Ok, thanks for your service.

ASSISTANT: Thank you for using our services, hope you have a great day.