You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I guide you now?

USER: Myself Jonathan Baker.

ASSISTANT: Welcome to our agency Jonathan Baker.

USER: I want to book a flight ticket from PHX to DTW. Can you help me in that?

ASSISTANT: Sure, may I know your depart and arrival time?

USER: My depart time should be in the afternoon.

ASSISTANT: Do you need a direct flight?

USER: No, I need a connecting flight.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: May I know your desired dates for this journey?

USER: My trip dates are Apr 4 to Apr 6.

ASSISTANT: Give me a moment to check for the flights.

USER: Sure.

ASSISTANT: Sorry to say, there are no flights available at your mentioned time.

USER: Ok, no problem.

ASSISTANT: Thank you for approaching our services.

USER: Thank you.

ASSISTANT: Have a great day.