You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you at this moment?

USER: I am Sandra Williams from Charlotte.

ASSISTANT: Nice meeting you Williams.

USER: Thanks, nice to meet you too. I want to go to LAX next month, can you please book a flight ticket for me from CLT?

ASSISTANT: Sure, I am glad to help you with that. Can you please provide your preferable dates of travelling?

USER: I want to take off on 04/22 and book my return ticket also 04/24.

ASSISTANT: Please wait a moment to check the flights availability.

USER: Ok.

ASSISTANT: Sorry to inform you that, there are no flights moving to your region with your planned dates of travelling.

USER: Oh! It's ok no problem,. Thank you for your information.

ASSISTANT: Thank you for reaching us, have a great day.