You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I would like to celebrate my birthday at Las Vegas with my friends, please help me in booking a ticket from CLT to LAS.

ASSISTANT: Sure, can you please share your travel dates?

USER: My planned travel dates are on Apr 27 and Apr 29.

ASSISTANT: May I know your connection limit?

USER: I am looking for a connecting flight.

ASSISTANT: Do you have any other specification that you are looking for?

USER: No, thank you for asking.

ASSISTANT: May I know your name to proceed further?

USER: My name is Donna Nelson.

ASSISTANT: There is a flight available with price 100 and the connection is 1 with United Airline. Would you like me to proceed with the booking?

USER: Ok, please proceed for booking.

ASSISTANT: Your booking is confirmed with 1000 flight number and the depart time is 11:00 hours, return time is 5:00 hours.

USER: Thank you for your assistance.

ASSISTANT: Thank you for reaching us.