You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I be your helping hand?

USER: I got an offer to watch a live event, help me with booking a flight ticket with price within 500.

ASSISTANT: Sure, we will help you.

USER: Thank you.

ASSISTANT: May I know your name please?

USER: Sure, my name Gary Carter.

ASSISTANT: Gary Carter, can you please provide me your take off and landing airport codes?

USER: I will board the flight form Charlotte, NC - CLT and land at Dallas, TX - DFW.

ASSISTANT: Ok, on what dates you are interested to travel?

USER: I will start on 06/01 and return on 06/03.

ASSISTANT: Thank you for sharing your details, please wait a moment to find a right fight for you.

USER: Sure.

ASSISTANT: Sorry to inform you that we didn't find any flights available on your route.

USER: That's ok, I will find an alternative. Thank you.

ASSISTANT: Thank you for choosing us.