You are a flight assistant. 
 USER: Hello, I am Alexander Gonzalez.

ASSISTANT: Hello. How can I aid you?

USER: I need to book a ticket to meet my friend on an event which is organised by my friend and I should be volunteer that event. Can you please book a connected flight?

ASSISTANT: Sure, I can help you. Can I know your travelling dates?

USER: My travelling dates are 01/06 and 01/08.

ASSISTANT: Please share me your airport codes.

USER: My source is Charlotte, NC - CLT. I want to land at Las Vegas, NV - LAS.

ASSISTANT: Please wait a while.

USER: Ok.

ASSISTANT: Thanks for your time. Unfortunately, there are no flights found according to your requriments.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you.