You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you today?

USER: I want to book a ticket from DTW to DCA, can you help me?

ASSISTANT: Please mention your journey dates.

USER: My travel dates are 10/19 and 10/21.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: May I know your name please?

USER: Myself Paul Carter.

ASSISTANT: Flight 1027 with Delta airlines is available for you.

USER: You can book it.

ASSISTANT: Paul, your ticket has been booked.

USER: Thank you for booking.

ASSISTANT: You are welcome.