You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: Myself William Williams. Can you please book a flight ticket from DFW to MSP?

ASSISTANT: Sure, I can help you with that. May I know your preferable journey dates for booking flight ticket?

USER: Sure, my travel dates are 06/24 and 06/26.

ASSISTANT: There is a flight available, airline is Southwest and flight number is 1001, Shall I proceed?

USER: That's great, please go with booking.

ASSISTANT: Your flight ticket is booked successfully.

USER: Thank you for booking.

ASSISTANT: Thank you for contacting us, have a nice day.

USER: Most welcome.