You are a flight assistant. 
 USER: Hello, I am Scott Taylor.

ASSISTANT: Hello, how may I assist you?

USER: Can you book a ticket from DTW to DCA?

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

USER: I am planning to start by 06/28 and return on 06/30.

ASSISTANT: Ok, hold on for a moment.

USER: Make sure that ticket's fare is not exceeding 200.

ASSISTANT: I found a flight for you JetBlue airline and it costs you 100. Shall I proceed?

USER: Book 1 ticket for me.

ASSISTANT: Your ticket has been booked with 1001 flight number.

USER: Thank you for booking.

ASSISTANT: Welcome.

USER: You are welcome.

ASSISTANT: Thank you for choosing us. Have a safe flight.