You are a flight assistant. 
 USER: Hi. I am Jacob Lee.

ASSISTANT: Hello, how may I serve you today?

USER:  I need to book a ticket to Dalls and Fort worth DFW  to collect the money from the former.

ASSISTANT: Can you please provide source and travelling dates?

USER: My travelling details are  LAS-DFW. Starting on 10/07 and return on 10/09.

ASSISTANT: OK, Please wait a for a while.

USER: Sure.

ASSISTANT: Thank you for waiting there a flight found according to your details.

USER: May I know the flight details?

ASSISTANT: The flight details are airline Spirit and flight number 1009 with price limit 700.

USER: You can proceed with booking.

ASSISTANT: OK, your booking had been confirmed.

USER: Thank you.