You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Katherine Adams here.

ASSISTANT: How can I help you at this moment?

USER: Reserve a flight ticket for me that is for my airport codes ORD to LAS. For my business meeting in Las Vegas.

ASSISTANT: Sure, I can help you in booking flight ticket. Can you please let me know your travel dates for booking flight ticket?

USER: My travelling dates for journey are 12/29 to 12/31. I need a connecting flight.

ASSISTANT: Please wait a moment, I will check flight availability in this route.

USER: Sure.

ASSISTANT: Based on your information, UA airline is ready to serve you with 1 connection and a minimum fare of 100 is available for you. Shall I confirm this flight ticket for you?

USER: You can book the flight ticket. I am happy with the airline.

ASSISTANT: Your flight ticket is booked successfully, flight number is 1028.

USER: Thank you.

ASSISTANT: Thank you for reaching us, have a nice day.