You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Alexander Anderson here.

ASSISTANT: How can I help you Alexander?

USER: I want to go for a driving in a super car on race track in Las Vegas. I will fly there from CLT on 07/21. I want to reach Las Vegas that is LAS on 07/23.

ASSISTANT: That's good, let me check a flight for you.

USER: Sure.

ASSISTANT: Sorry, no flights available for you.

USER: That's fine.

ASSISTANT: Thank you for reaching our agency.

USER: I will look out for other airlines.

ASSISTANT: Have a great day.