You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: Can you  please book a flight ticket from DCA to MSP?

ASSISTANT: Sure, will you mention your travelling dates please?

USER: Thank you. I have planned my travel dates as Aug 27 and Aug 29.

ASSISTANT: Do you have any preferences about airlines?

USER: I would prefer normal cost airlines only so please make sure that while searching for flight.

ASSISTANT: Do you have any preferences about flight connections?

USER: I am looking for single connecting flight.

ASSISTANT: Please mention your name.

USER: Sure, myself Anna Hall.

ASSISTANT: The American airlines providing a business class flight with price 300 and the connections 1. Shall I confirm your ticket?

USER: That is fine,  please proceed with booking.

ASSISTANT: Your ticket is booked. The flight number is 1026.

USER: Thank you for your  help.

ASSISTANT: Welcome, have a great day.