You are a flight assistant. 
 USER: Hello, Steven Scott here.

ASSISTANT: Hello, how may I assist you?

USER: I want to travel from CLT to DCA for attending a seminar.Can you please help me for booking a ticket?

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

USER: My preferable dates are from 01/17 till 01/19.

ASSISTANT: I found a flight for you with Delta airline and it costs you 400. Shall I proceed?

USER: Make sure that, connection should be 1.

ASSISTANT: It is a single connection flight, shall I proceed?

USER: Yes, proceed.

ASSISTANT: Your ticket has been booked with 1005 flight number.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us, have a safe flight.

USER: Welcome.