You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Jeffrey Collins. I have planned for the trip to Las Vegas, can you please reserve a flight ticket?

ASSISTANT: Sure, I will help you out.

USER: Thank you.

ASSISTANT: May I know your travelling dates please?

USER: I am willing to travel in the dates of  09/21 and 09/23.

ASSISTANT: Can I know your airport codes please?

USER: The airport codes are from ATL to LAS.

ASSISTANT: OK, please wait for a while.

USER: Sure, make sure that the connection limit is 1.

ASSISTANT: There is a flight with connection 1 and price 300, can I proceed with this flight?

USER: I am fine with this flight to travel, please book the ticket with this flight.

ASSISTANT: Ok, your ticket has been booked.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us.

USER: Welcome.