You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: My name is Brenda Clark and I want to book a ticket.

ASSISTANT: OK, may I know your source and destination details?

USER: My origin airport code is IL-ORD and destination airport code is NV-LAS.

ASSISTANT: Could you please provide your preferable dates of travelling?

USER: My departure date is 02/09 and return date is 02/11.

ASSISTANT: Is there any additional requirements do you have?

USER: My price limit is 1000 with connections limit is 1.

ASSISTANT: Flight number 1005 from UA airline is exactly matches with your requirements. Shall I proceed for booking?

USER: That's perfect. Please proceed for booking.

ASSISTANT: Your ticket has been successfully confirmed.

USER: Thanks for helping me.

ASSISTANT: Thank you, have a safe journey.