You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: Samuel Collins here. I would like to fly from IAD, would you please aid me in booking a flight ticket to DFW? My travelling dates are 07/31 to 08/02.

ASSISTANT: Please wait a moment.

USER: Sure, take your time.

ASSISTANT: Flight 1005 in Spirit airlines is available for you with 1 stopover and it costs you 100. Can I proceed?

USER: Yes, you can proceed with that booking.

ASSISTANT: Your booking is done.

USER:  I really appreciate your help, thank you for your service.

ASSISTANT: Thank you for choosing us, have a safe flight.