You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello. How can I render you?

USER: Please book a round trip ticket with Detroit, MI-DTW.

ASSISTANT: Sure. Do you want connecting flight or direct flight?

USER: I need connecting flight.

ASSISTANT: Can you share me your travelling dates?

USER: Departure date is 02/07 and 02/09 is return date.

ASSISTANT: May I know your name?

USER: My name is Nancy Young.

ASSISTANT: Please wait, I will check and revert to you.

USER: Sure.

ASSISTANT: Thanks for waiting. There is a flight 1009 in Delta airline and price 200 with a connection. Shall I proceed?

USER: Please book a ticket.

ASSISTANT: Reservation is done.

USER: Thanks.

ASSISTANT: Thank you.