You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. how can I assist you?

USER: I am planning for a trip from IAD to MSP, hope you are helping me out with booking.

ASSISTANT: Sure, please provide your planned dates to book your ticket.

USER: Sure, my journey dates are from Feb 04 to 06.

ASSISTANT: For process further I need to confirm your name. So please mention your name.

USER: Sure, William Gonzalez here.

ASSISTANT: what is your max connection limit?

USER: I need a flight with 1 connection.

ASSISTANT: Which class are you comfortable with either business or economy?

USER: Any class is fine for me.

ASSISTANT: Do you need any other specifications?

USER: No.

ASSISTANT: We have a connecting flight operated by Spirit Airlines with a fare of 200. Shall I book your seat in this flight-1002?

USER: Confirm it.

ASSISTANT: Your ticket has been booked and it will be sent to your mail shortly.

USER: Thanks for your help.

ASSISTANT: Thank you for choosing us.