You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I would like to visit NV-LAS to attend the business meeting from CO-DEN, can you make a flight reservation for me?

ASSISTANT: Sure, please help me with your airport codes? Ok, now please provide the travel dates?

USER: My travel dates are 03/31 and 04/02.

ASSISTANT: Just hold on for a moment please.

USER: Ok.

ASSISTANT: Thanks for patiently waiting. I have Hawaiian airlines with one connection.

USER: Please book a ticket with the name of Charles Collins.

ASSISTANT: Sure. Congratulations, your flight ticket has been confirmed.

USER: Thanks for your valuable information.

ASSISTANT: Thanks for reaching to us.