You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today?

USER: I would like to prefer a economy class flight for my holiday trip to Washington. So can you book the flight ticket for me?

ASSISTANT: Sure, when would you like to travel?

USER: The trip dates are from 04 May to 06 May.

ASSISTANT: Do you have any preferences?

USER: I need a single connecting flight.

ASSISTANT: Let me know your airport codes for booking process?

USER: The airport codes are from MSP to IAD.

ASSISTANT: May I know your name please?

USER: I am Joshua Nelson.

ASSISTANT: Thank you for your details, we found a flight in an airline Frontier with 1010 number having a single connection price of 100 in an economy class. Shall I reserve it?

USER: I am fine with the airlines and fare. You can book it.

ASSISTANT: Your flight ticket has been booked.

USER: Thank you.

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