You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am William Hill. I am planning to visit Millennium Park at Chicago, could you please help me with booking a flight ticket from LAS to ORD?

ASSISTANT: Sure, may I know your planned travel dates?

USER: I would like to depart on Apr 30th and return on May 2nd.

ASSISTANT: Do you need a halt in between your journey?

USER: Yes, I need a connecting flight.

ASSISTANT: Do you have any other specifications?

USER: No, thanks for asking.

ASSISTANT: Please wait for a moment.

USER: Sure, take your time.

ASSISTANT: We found an airline: Spirit, flight number: 1025 and price is 200 with one connection. Shall I proceed to booking?

USER: Please confirm the booking.

ASSISTANT: Your flight ticket has been reserved.

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

ASSISTANT: Thank you for reaching us.