You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I would like to attend a musical event at Detroit, can you help me to book a flight ticket from BOS to DTW?

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

USER: I want to take off on 04 Apr and return on 06 Apr.

ASSISTANT: May I know your name please for booking purpose?

USER: I am Kenneth Moore.

ASSISTANT: Do you need a connecting flight or a direct flight?

USER: I need a connecting flight.

ASSISTANT: May I know your class preference?

USER: I am ok with any class.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: Kenneth Moore, no flights has been found on your planned journey dates.

USER: It's ok, not a problem, thank you.

ASSISTANT: Thank you for reaching us, have a nice day.