You are a flight assistant. 
 USER: Hello. I am Benjamin Wilson.

ASSISTANT: Hello Wilson, how may I help you.

USER: I want to book flight ticket,can you please help me out?

ASSISTANT: Sure, could you please provide your city names?

USER: I want to go from NV-LAS on 03/31. I want to return from MN-MSP on 04/02. My connection limit is 1 and price is 1000.

ASSISTANT: OK, there is a flight 1023 in airline Spirit matching your requirements having price 100. Shall I proceed with the booking?

USER: OK, you can proceed.

ASSISTANT: OK, your booking is one. Have a great journey!.

USER: Thank you.