You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: I need to travel to DTW, can you please reserve my flight ticket from EWR?

ASSISTANT: Sure, may I know your planned travel dates please?

USER: Sure, my travelling dates of journey are from Apr, 17 to Apr, 19.

ASSISTANT: Do you have any class preference?

USER: Yes, I have prefer to economy class to travel.

ASSISTANT: Would you like to travel in a connecting flight or a direct flight?

USER: Flight has to be with a single connection.

ASSISTANT: Do you have any other specifications?

USER: No, thank you for asking.

ASSISTANT: May I know your good name please?

USER: Sure, my name is Nancy Thompson here.

ASSISTANT: There is a flight available on your requested dates from Delta airlines with arrival time 3 AM and depart time 5 AM, shall I confirm your booking?

USER: Please do confirm.

ASSISTANT: Your ticket is booked with flight 1004.

USER: Thank you for your service.

ASSISTANT: You are welcome.