You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I respond to your request?

USER: I want to book a flight ticket from MSp to IAH. Could you help me in booking?

ASSISTANT: When would you like me to book your ticket?

USER: My travelling dates are from Dec 19 - 21.

ASSISTANT: Ok, do you have any class preference?

USER: No.

ASSISTANT: Do you need any layover in between journey?

USER: I prefer for connecting flight.

ASSISTANT: May I know your name?

USER: Benjamin Allen.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: I found that Southwest Airlines is available on your dates which matches your essentials and it costs you only 100. Should I proceed to book it?

USER: Yes, please proceed.

ASSISTANT: Ok, your ticket has been successfully booked with flight number 1022.

USER: Thank you.