You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you out?

USER: Can you please help me to book a flight ticket from MSP to IAD?

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: My travelling dates are Jan 3 to Jan 5.

ASSISTANT: Can I know your name please?

USER: Sandra Taylor.

ASSISTANT: Do you need any specifications?

USER: I prefer to fly in big brand airlines.

ASSISTANT: Can I know your other preferences?

USER: I need a connecting flight.

ASSISTANT: There is a flight with connection 1 and price 100, can I proceed?

USER: Ok, please proceed to book.

ASSISTANT: Ok, your ticket has been booked with flight number 1027.

USER: Thank you.

ASSISTANT: Thank you for reaching us.