You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you for today?

USER: I am Richard Harris. I am planning to attend music concert at CLT, can you please help me with booking a flight ticket from LGA?

ASSISTANT: Can you please share on what dates you are willing to travel?

USER: Sure, I would like to take off on 11/12 and return on 11/14.

ASSISTANT: Do you have any other requirements that you are looking for?

USER: Yes, make sure that the price limit does not exceed 500.

ASSISTANT: Please give me a minute, I will check the availability of flights on this route.

USER: Sure.

ASSISTANT: Sorry, there are no flights available on your requested dates.

USER: Ok, no issues. Thank you for checking.

ASSISTANT: Thank you for contacting us, have a nice day.